CVE-2015-7506 — The gif_next_LZW function in libnsgif.c in Libnsgif 0.1.2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted LZW stream in a GIF file

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MEDIUM

The gif_next_LZW function in libnsgif.c in Libnsgif 0.1.2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted LZW stream in a GIF file

Published Feb 18, 2020

6.5

MEDIUM

CVSS 3.1

EPSS 1.27%

Description

The gif_next_LZW function in libnsgif.c in Libnsgif 0.1.2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted LZW stream in a GIF file.

Affected products

Vendor Libnsgif Product Libnsgif Default
n/a
- Version
  0.1.2
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Libnsgif

n/a

Version	Status	Constraints
0.1.2	affected	-

Remediation

No remediation recorded yet.

Metrics

1.27% 0.01270

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01270

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	1.27% (0.01270)	68.79th	v5 (v2026.06.15)
Jun 15, 2026	1.07% (0.01073)	60.42th	v5 (v2026.06.15)
Mar 17, 2025	0.43% (0.00433)	60.62th	v4 (v2025.03.14)
Dec 12, 2024	0.07% (0.00068)	31.91th	v3 (v2023.03.01)
Jun 14, 2024	0.07% (0.00068)	29.83th	v3 (v2023.03.01)
May 8, 2023	0.07% (0.00068)	27.82th	v3 (v2023.03.01)
Mar 7, 2023	0.10% (0.00097)	38.91th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00885)	26.24th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00885)	24.24th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)

Weaknesses (1)

CWE-125

Out-of-bounds Read

References (1)

http://seclists.org/fulldisclosure/2015/Dec/70
x_refsource_MISCMailing ListThird Party Advisory

Link	Providers	Tags
http://seclists.org/fulldisclosure/2015/Dec/70		x_refsource_MISCMailing ListThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner redhat

Published Feb 18, 2020

Updated Aug 6, 2024

Reserved Sep 29, 2015

Link CVE-2015-7506

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-7506

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-7506