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Fencer Vulns
medium 5.5

CVE-2022-34556 json

PicoC v3.2.2 was discovered to contain a NULL pointer dereference at variable.c.

published 2022-07-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37509

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

PicoC v3.2.2 was discovered to contain a NULL pointer dereference at variable.c.

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/zsaleeba/picoc/-/issues/47 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/jpoirier/picoc/issues/34 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 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.