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CVE-2025-8736

A vulnerability, which was classified as critical, has been found in GNU cflow up to 1.8. Affected by this issue is the function yylex of the file c.c of the component Lexer. The manipulation leads to buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:52ef59d410c0415e78a31da24f12a30d4fc177b9b2eb396999bd3f66b31c0ab4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":4.3,"vectorString":"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-120","description":"Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"modules":["Lexer"],"product":"cflow","vendor":"GNU","versions":[{"status":"affected","version":"1.0"},{"status":"affected","version":"1.1"},{"status":"affected","version":"1.2"},{"status":"affected","version":"1.3"},{"status":"affected","version":"1.4"},{"status":"affected","version":"1.5"},{"status":"affected","version":"1.6"},{"status":"affected","version":"1.7"},{"status":"affected","version":"1.8"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":4.3,"vectorString":"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-120","description":"Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["exploit"],"url":"https://drive.google.com/file/d/17lkJ5bSiQZoXLTg3bK-rGBt3kahN9Xse/view?usp=drive_link"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/references/4
{"tags":["related"],"url":"https://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00001.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/references/3
{"name":"VDB-319232 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.319232"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/references/1
{"name":"VDB-319232 | GNU cflow Lexer c.c yylex buffer overflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.319232"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/references/0
{"name":"Submit #622329 | GNU cflow cflow cflow (GNU cflow) the newest master (0a19319e282506ff88d19e630380cd5069e893ed ) in cflow.git - GNU cflow Buffer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.622329"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/references/2
{"tags":["product"],"url":"https://www.gnu.org/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28a198fa7f721fe61c2bd7328a7df5830cb5a721c726c1919fa49621a1700440 · sha256:ea873c5b59eafc4a… · /containers/cna/references/5

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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