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CVE-2026-18607

A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation of the argument HTTP_COOKIE leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:02ed92a39a3c66f7c756536285e47029dc02f21c7c7fc6884a8bdf4d14bdd91f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
3

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 15 assertions

{"cpes":["cpe:2.3:a:wavlink:wn551:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN551","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/12

{"cpes":["cpe:2.3:a:wavlink:wn570h:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN570H","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/1

{"cpes":["cpe:2.3:a:wavlink:wn530:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN530","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/4

{"cpes":["cpe:2.3:a:wavlink:wn557:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN557","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/13

{"cpes":["cpe:2.3:a:wavlink:wn531:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN531","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/9

{"cpes":["cpe:2.3:a:wavlink:wn531:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN531","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/5

{"cpes":["cpe:2.3:a:wavlink:wn535:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN535","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/6

{"cpes":["cpe:2.3:a:wavlink:wn535:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN535","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/10

{"cpes":["cpe:2.3:a:wavlink:etc._wn529:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"etc. WN529","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/7

{"cpes":["cpe:2.3:a:wavlink:nu516:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"NU516","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/14

{"cpes":["cpe:2.3:a:wavlink:wn530:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN530","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/8

{"cpes":["cpe:2.3:a:wavlink:wn536:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN536","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/11

{"cpes":["cpe:2.3:a:wavlink:wn572:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN572","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/0

{"cpes":["cpe:2.3:a:wavlink:wn573:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN573","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/2

{"cpes":["cpe:2.3:a:wavlink:wn529:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN529","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/3
cvss · 4 assertions

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-121","description":"Stack-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

15 source assertions
{"cpes":["cpe:2.3:a:wavlink:wn551:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN551","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/12
{"cpes":["cpe:2.3:a:wavlink:wn570h:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN570H","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/1
{"cpes":["cpe:2.3:a:wavlink:wn530:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN530","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/4
{"cpes":["cpe:2.3:a:wavlink:wn557:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN557","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/13
{"cpes":["cpe:2.3:a:wavlink:wn531:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN531","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/9
{"cpes":["cpe:2.3:a:wavlink:wn531:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN531","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/5
{"cpes":["cpe:2.3:a:wavlink:wn535:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN535","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/6
{"cpes":["cpe:2.3:a:wavlink:wn535:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN535","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/10
{"cpes":["cpe:2.3:a:wavlink:etc._wn529:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"etc. WN529","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/7
{"cpes":["cpe:2.3:a:wavlink:nu516:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"NU516","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/14
{"cpes":["cpe:2.3:a:wavlink:wn530:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN530","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/8
{"cpes":["cpe:2.3:a:wavlink:wn536:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN536","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/11
{"cpes":["cpe:2.3:a:wavlink:wn572:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN572","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/0
{"cpes":["cpe:2.3:a:wavlink:wn573:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN573","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/2
{"cpes":["cpe:2.3:a:wavlink:wn529:*:*:*:*:*:*:*:*"],"modules":["lighttpd"],"product":"WN529","vendor":"Wavlink","versions":[{"status":"affected","version":"20260609"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/affected/3

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-121","description":"Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"tags":["exploit"],"url":"https://github.com/0xcc12138/WAVLINK-vul"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/references/4
{"name":"CVE-2026-18607 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-18607"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/references/2
{"name":"Submit #852637 | WAVLINK Multiple Router Series (WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc.) WN529, WN530, WN531, WN535, WN536, WN551, WN557, NU516,and so on Stack-based Buffer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/852637"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/references/3
{"name":"VDB-385530 | Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/385530"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/references/0
{"name":"VDB-385530 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/385530/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2ce47ce28f8833fce375607d65b0b772635604106a9e09a72548755f2dfc22e · sha256:c388d63151cfe0cc… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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