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CVE-2026-48688

FastNetMon Community Edition through 1.2.9 contains multiple out-of-bounds reads in the BGP MP_REACH_NLRI IPv6 attribute decoder. The function decode_mp_reach_ipv6() in src/bgp_protocol.cpp contains a TODO comment at line 156 explicitly acknowledging 'we should add sanity checks to avoid reads after attribute memory block.' The function casts raw pointers to structure types without verifying sufficient data exists (line 158), uses the attacker-controlled length_of_next_hop field to determine mem
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:45a22774df24ecdf03d1afc7e5339022c365fb477430745bb13632b872350c1d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://github.com/pavel-odintsov/fastnetmon"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/cna/references/0
{"url":"https://github.com/pavel-odintsov/fastnetmon/blob/master/src/bgp_protocol.cpp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/cna/references/1
{"url":"https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48688-bgp-mp-reach-nlri-ipv6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a866fbfc6af2684afccbf43ec91bbbb590c3d87305d381aa8686be111b7e27f2 · sha256:3e2e09774ba294aa… · /containers/cna/references/2

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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