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Fencer Vulns
high 7.8

CVE-2020-21427 json

Buffer Overflow vulnerability in function LoadPixelDataRLE8 in PluginBMP.cpp in FreeImage 3.18.0 allows remote attackers to run arbitrary c…

published 2023-08-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14199

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

Buffer Overflow vulnerability in function LoadPixelDataRLE8 in PluginBMP.cpp in FreeImage 3.18.0 allows remote attackers to run arbitrary code and cause other impacts via crafted image file.

Patch / fix

  • freeimage Debian 12 3.18.0+ds2-9+deb12u1
  • freeimage Debian 13 3.18.0+ds2-10

debian advisories DEBIAN-CVE-2020-21427

  • freeimage Ubuntu 20.04 LTS 3.18.0+ds2-1ubuntu3.1
  • freeimage Ubuntu 22.04 LTS 3.18.0+ds2-6ubuntu5.1
  • freeimage Ubuntu 24.04 LTS 3.18.0+ds2-10build4
  • freeimage Ubuntu Pro 14.04 LTS 3.15.4-3ubuntu0.1+esm3
  • freeimage Ubuntu Pro 16.04 LTS 3.17.0+ds1-2ubuntu0.1+esm1
  • freeimage Ubuntu Pro 18.04 LTS 3.17.0+ds1-5+deb9u1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2020-21427

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2020-21427 updated cvss 7.8

freeimage: buffer overflow in LoadPixelDataRLE8() in PluginBMP.cpp

  • 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.