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Fencer Vulns
critical 9.8

CVE-2023-23086 json

Buffer OverFlow Vulnerability in MojoJson v1.2.3 allows an attacker to execute arbitrary code via the SkipString function.

published 2023-02-03 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-27186

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

Buffer OverFlow Vulnerability in MojoJson v1.2.3 allows an attacker to execute arbitrary code via the SkipString function.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
19 mo ago

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/scottcgi/MojoJson/issues/2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.