7.5

CVE-2005-2096: zlib

Modified
AliasesRHSA-2005:569DEBIAN-CVE-2005-2096DSA-740-1
Published 06-07-2005Last modified 14-07-2026
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Vulnerability summary

CVE-2005-2096 is a high (CVSS 7.5) vulnerability in zlib. EPSS estimates a 5.63% chance of exploitation in the next 30 days, higher than 92.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
5.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 1
DSA-1026-1DSA-797-1OPENSUSE-SU-2024:10580-1RHSA-2008:0264RHSA-2008:0525RHSA-2008:0629

Timeline

  1. 06-07-2005
    PublishedVulnerability first disclosed.
  2. 14-07-2026
    Last modifiedVulnerability information updated.

Description

zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

5.63%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

No change 0.00 pp

From 5.63% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Debian11 products
  • aide< 0.10-6.1.1
  • bacula< 1.36.3-2
  • dpkg< 1.13.11
  • dump< 0.4b40-1
  • libphysfs< 1.0.0-5
Redhat3 products
  • zlib< 0:1.2.1.2-1.1
  • zlib-debuginfo< 0:1.2.1.2-1.1
  • zlib-devel< 0:1.2.1.2-1.1
Zlib1 product
  • zlib1.2.0 | 1.2.1 | 1.2.2

3 vendors · 15 products

References

64 links
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