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Fencer Vulns
medium 5.5

CVE-2022-44319 json

PicoC Version 3.2.2 was discovered to contain a heap buffer overflow in the StdioBasePrintf function in cstdlib/string.c when called from E…

published 2022-11-08 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-47264

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

PicoC Version 3.2.2 was discovered to contain a heap buffer overflow in the StdioBasePrintf function in cstdlib/string.c when called from ExpressionParseFunctionCall.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/jpoirier/picoc/issues/37 referenced PoC, tagged "exploit" by a source, unverified
  • gitlab.com https://gitlab.com/zsaleeba/picoc/-/issues/48 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.