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Fencer Vulns
medium 5.5

CVE-2020-10814 json

A buffer overflow vulnerability in Code::Blocks 17.12 allows an attacker to execute arbitrary code via a crafted project file.

published 2020-04-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3220

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

A buffer overflow vulnerability in Code::Blocks 17.12 allows an attacker to execute arbitrary code via a crafted project file.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-10814 updated cvss 5.5

codeblocks: A buffer overflow vulnerability in codeblocks could result in arbitrary code execution

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.14% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceforge.net https://sourceforge.net/p/codeblocks/tickets/934/ referenced PoC, tagged "exploit" by a source, unverified
  • povonsec.com https://www.povonsec.com/codeblocks-security-vulnerability/ 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
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

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.