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debian/flex vulnerabilities

7 published CVES affecting debian/flex, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).

Total
7
Critical
1
High
2
Medium
1
Low
0
Unscored
3
CISA KEV
0

Latest debian/flex CVEs

Newest publication first

  1. MediumCVSS 5.5

    An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers co...

  2. HighCVSS 7.5

    flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rules, which causes flex to generate code that contains a buffer overflow that might...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.