CVE-2018-13785

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation4% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
91%
KEV
Not listed

Published

July 9, 2018

Last Modified

May 29, 2026

References (40)

Vendor Advisories for CVE-2018-13785(13)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibpng3 (1.2.50-1ubuntu2.14.04.3) @ trusty2026-05-28ubuntu
redhatjava-1.8.0-ibm-1:1.8.0.5.25-1jpp.1.el6_102018-12-18redhat
redhatjava-1.7.1-ibm-1:1.7.1.4.35-1jpp.1.el6_102018-12-05redhat
redhatjava-1.7.1-ibm-1:1.7.1.4.35-1jpp.1.el72018-11-26redhat
redhatjava-1.8.0-ibm-1:1.8.0.5.25-1jpp.1.el72018-11-09redhat
redhatjava-1.6.0-sun-1:1.6.0.211-1jpp.1.el72018-10-24redhat
redhatjava-1.6.0-sun-1:1.6.0.211-1jpp.1.el62018-10-24redhat
redhatjava-1.7.0-oracle-1:1.7.0.201-1jpp.1.el62018-10-24redhat
redhatjava-1.8.0-oracle-1:1.8.0.191-1jpp.1.el62018-10-24redhat
redhatjava-1.7.0-oracle-1:1.7.0.201-1jpp.1.el72018-10-24redhat
redhatjava-1.8.0-oracle-1:1.8.0.191-1jpp.1.el72018-10-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libpng1.6—1.6.34-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libpng1.6—1.6.34-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libpng1.6—1.6.34-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libpng1.6—1.6.34-2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 122 total refreshes for this CVE.

  1. 2026-08-25 13:44 UTCEPSS rescore
  2. 2026-08-23 00:14 UTCEPSS rescore
  3. 2026-08-22 13:37 UTCOSV refresh
  4. 2026-08-21 23:44 UTCEPSS rescore
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  18. 2026-08-06 17:05 UTCOSV refresh
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  21. 2026-08-04 15:05 UTCEPSS rescore
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  24. 2026-07-30 16:24 UTCEPSS rescore
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  1. 2026-07-28 15:32 UTCEPSS rescore
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  5. 2026-07-23 01:33 UTCEG score recompute
  6. 2026-07-22 22:13 UTCEG score recompute
  7. 2026-07-22 14:04 UTCEPSS rescore
  8. 2026-07-21 15:21 UTCEPSS rescore
  9. 2026-07-21 09:47 UTCOSV refresh
  10. 2026-07-20 17:04 UTCEPSS rescore
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  12. 2026-07-19 14:28 UTCEPSS rescore
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  21. 2026-07-12 05:43 UTCEPSS rescore
  22. 2026-07-11 08:24 UTCEPSS rescore
  23. 2026-07-09 19:06 UTCEPSS rescore
  24. 2026-07-08 15:11 UTCEPSS rescore
  25. 2026-07-07 13:42 UTCEPSS rescore
  26. 2026-07-07 13:42 UTCEPSS rescore
  27. 2026-07-06 16:24 UTCEPSS rescore
  28. 2026-07-06 16:24 UTCEPSS rescore
  29. 2026-07-06 02:20 UTCEPSS rescore
  30. 2026-07-05 02:27 UTCEPSS rescore
  31. 2026-07-04 06:28 UTCEPSS rescore
  32. 2026-07-04 04:56 UTCOSV refresh
  33. 2026-07-02 16:54 UTCEPSS rescore
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  41. 2026-06-27 03:06 UTCEPSS rescore
  42. 2026-06-25 13:47 UTCEPSS rescore
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  44. 2026-06-24 14:02 UTCEPSS rescore
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  46. 2026-06-23 21:30 UTCEPSS rescore
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  48. 2026-06-21 14:54 UTCEPSS rescore
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  50. 2026-06-21 01:57 UTCEPSS rescore
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  52. 2026-06-19 19:23 UTCEPSS rescore
  53. 2026-06-18 17:50 UTCEPSS rescore
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  60. 2026-06-15 16:43 UTCOSV refresh
  61. 2026-06-14 23:14 UTCEPSS rescore
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  63. 2026-06-13 22:58 UTCEPSS rescore
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  75. 2026-06-05 22:45 UTCEPSS rescore

Frequently asked(5)

What is CVE-2018-13785?
CVE-2018-13785 is a medium vulnerability published on July 9, 2018. In libpng 1.6.34, a wrong calculation of rowfactor in the pngcheckchunklength 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.
When was CVE-2018-13785 disclosed?
CVE-2018-13785 was first published in the National Vulnerability Database on July 9, 2018, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-13785 actively exploited?
CVE-2018-13785 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 9.3% of all scored CVEs.
What is the CVSS score of CVE-2018-13785?
CVE-2018-13785 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2018-13785?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-13785, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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