CVE-2026-26740

| EUVD-2026-12914 HIGH
2026-03-18 mitre
8.2
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

Lifecycle Timeline

5
Patch Released
Apr 10, 2026 - 08:30 nvd
Patch available
PoC Detected
Mar 21, 2026 - 00:09 vuln.today
Public exploit code
Analysis Generated
Mar 18, 2026 - 18:15 vuln.today
EUVD ID Assigned
Mar 18, 2026 - 18:15 euvd
EUVD-2026-12914
CVE Published
Mar 18, 2026 - 00:00 nvd
HIGH 8.2

Tags

Buffer Overflow Denial Of Service Memory Corruption Redhat Suse

Description

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

Analysis

Giflib 5.2.2 contains a buffer overflow in the EGifGCBToExtension function that fails to validate allocated memory when processing Graphic Control Extension blocks, enabling remote attackers to trigger denial of service conditions. Public exploit code exists for this vulnerability, though no patch is currently available. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

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Priority Score

61
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +41
POC: +20

Vendor Status

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CVE-2026-26740 vulnerability details – vuln.today
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