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CVE-2021-37789

26
FAUCET Score

CVE-2021-37789 describes a heap-based buffer overflow vulnerability in stb_image.h version 2.27, specifically within the stbi__jpeg_load function, affecting Debian Linux and stb_project products. This vulnerability carries a high CVSS score of 8.1, indicating a network-based attack with low complexity that requires user interaction, potentially leading to information disclosure or denial of service. While no active exploitation, public exploits (Metasploit, Nuclei, ExploitDB), or significant community discussion have been observed, its high severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
2.27CPE matchmatch criteria
cpe:2.3:a:stb_project:stb:2.27:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.78%
Probability of exploitation in next 30 days
EPSS Percentile
52.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0078 is in the 54th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: cogl
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: cogl

Vendor Advisories (1)

redhatCVE-2021-37789Moderate

stb_image: heap-based buffer overflow

Nov 9, 2022

References

github.com / nothings/stb/issues/1178
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2023/01/msg00045.html
Mailing ListThird Party Advisory