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TI-2021-15637 Aliases CVE-2021-37789GHSA-3fjh-5fm6-fqmw

stb_image.h 2.27 has a heap-based buffer over in stbi__jpeg_load, leading to Information…

Priority LOW 37CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

stb_image.h 2.27 has a heap-based buffer over in stbi__jpeg_load, leading to Information Disclosure or Denial of Service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01002 63rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:stb_project:stb:2.27:*:*:*:*:*:*:*2.27VulnerableStb Project
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:stb_project:stb:2.27:*:*:*:*:*:*:* Versions 2.27 Vulnerable ·Stb Project
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 9AffectedNo fix planned: Will not fix

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-37789
  2. 2026-10-03 Alias added: GHSA-3fjh-5fm6-fqmw

References

Sources