Is CVE-2018-13785 in the CISA KEV catalog?

No. CVE-2018-13785 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-13785?

CVE-2018-13785 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2018-13785?

CVE-2018-13785 has an EPSS score of 4.47% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-13785?

Upgrade libpng1.6 on debian 11 to 1.6.34-2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2018-13785

MEDIUMEPSS 90th pctl

6.5

CVSS v3

NVD

Description

In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.

CWE-190Integer Overflow CWE-369

How to fix

Remediation Available

libpng1.6Debian

Fixed in:1.6.34-2CVE-2018-13785

libpngUbuntu

Fixed in:1.2.50-1ubuntu2.14.04.3USN-3712-1

Fixed in:1.2.54-1ubuntu1.1USN-3712-1

libpng1.6Ubuntu

Fixed in:1.6.34-1ubuntu0.18.04.1USN-3712-1

libpng12-0Ubuntu

Fixed in:1.2.50-1ubuntu2.14.04.3USN-3712-1

Fixed in:1.2.54-1ubuntu1.1USN-3712-1

libpng16-16Ubuntu

Fixed in:1.6.34-1ubuntu0.18.04.1USN-3712-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

4.47%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-29.