How severe is CVE-2005-1849?

CVE-2005-1849 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-1849 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1849?

CVE-2005-1849 affects Zlib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2005-1849?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-1849 published?

CVE-2005-1849 was published on 2005-07-26 and last updated on 2026-06-16.

CVE-2005-1849

CVE-2005-1849 is a medium-severity vulnerability in Zlib with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zlib
Published: 2005-07-26
Last modified: 2026-06-16

Description

inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be produced.

Frequently asked questions

What is CVE-2005-1849?: inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be produced.
How severe is CVE-2005-1849?: CVE-2005-1849 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-1849 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1849?: CVE-2005-1849 affects Zlib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-1849?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-1849 published?: CVE-2005-1849 was published on 2005-07-26 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:zlib:zlib:1.2.2:*:*:*:*:*:*:*

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