CVE-2023-48161Public exploit

Information disclosure via heap buffer over-read

Published Nov 22, 2023 · Updated Aug 2, 2024

Heap-buffer over-read in GIFLIB 5.2.1 allows local users to disclose process memory or crash gif2rgb using a crafted GIF. DumpScreen2RGB reads outside an allocated heap buffer at lines 321–323 while saving malformed image data. Local access and execution of gif2rgb on the crafted file are required; the demonstrated result is a crash, and the CVE record also identifies sensitive-information exposure.

CVSS severity7.1
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-buffer over-read in GIFLIB 5.2.1 allows local users to disclose process memory or crash gif2rgb using a crafted GIF. DumpScreen2RGB reads outside an allocated heap buffer at lines 321–323 while saving malformed image data. Local access and execution of gif2rgb on the crafted file are required; the demonstrated result is a crash, and the CVE record also identifies sensitive-information exposure.

The record

CVE
CVE-2023-48161
Published
Nov 22, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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