Vulnary
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Critical· 9.2official fix available

CVE-2026-21096

A critical heap-based buffer overflow exists in the JPEG decoder of libimagecodec.quram.so, allowing remote attackers to execute arbitrary code. The vulnerability is fixed in SMR Sep-2026 Release 1.

publishedSep 9, 2026
last modifiedSep 11, 2026
sourcesNVD
severity · cvss
9.2
critical · how bad it is
exploitation · epss
<1%
38th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Oct 9, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

libimagecodec.quram.so versions prior to SMR Sep-2026 Release 1, used by any application that incorporates this JPEG decoder.

02

Real-world impact

An attacker can run any code on the affected system, potentially taking full control of the device or server.

03

Why this severity

The CVSS score of 9.2 reflects the high impact of remote code execution with no authentication or user interaction required, and the ability to compromise the entire system.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade libimagecodec.quram.so to SMR Sep-2026 Release 1 or later.
  2. 02Restart any services that use the library to load the updated component.

NVD-referenced vendor advisory

05

Timeline

  1. Sep 9, 2026 · 5d ago
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Sep 9, 2026 · 5d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
  3. Sep 11, 2026 · 3d ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsPresent
Privileges requiredNone
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
CVE-2026-21096: A critical heap-based buffer overflow exists in the JPEG decoder of li · Vulnary