LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.
CVE-2025-65018
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2025-199236 (ENISA EUVD)Source: ENISA EUVD
- Public exploit or proof-of-concept code is available
A fix is available — apply it.
- CVSS v3
- 7.1
- EG Score
- 7.1HIGHmedium confidence
- EG Risk
- 48EG Risk 48/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity71% × 45%Impact severity (EG Severity): CVSS 7.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.3%
- EPSS %ILE
- 20th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.1): severity, escalated by confirmed exploitation. This CVE's 7.1 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-26). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
November 25, 2025
Last Modified
October 18, 2026
Advisory Details (5)
Auto-updated Aug 8, 2026Heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read` · Advisory · pnggroup/libpng · GitHub
https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3gVulnerability Report: Heap Buffer Overflow in png_combine_row (libpng16, triggered via png_image_finish_read) · Issue #755 · pnggroup/libpng · GitHub
https://github.com/pnggroup/libpng/issues/755Fix a heap buffer overflow in `png_image_finish_read`
Fix merged in pnggroup/libpng PR #757 on 2025-11-19 — awaiting tagged release
https://github.com/pnggroup/libpng/pull/757commit 218612ddd6b1 (pnggroup/libpng)
Fix landed in pnggroup/libpng commit 218612ddd6b1 — awaiting tagged release
https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1eacommit 16b5e3823918 (pnggroup/libpng)
Fix landed in pnggroup/libpng commit 16b5e3823918 — awaiting tagged release
https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4dVendor Advisories for CVE-2025-65018(20)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2025-65018Microsoft Security Response Center (MSRC)High
LIBPNG is vulnerable to a heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read`
- RHSA-2026:6732Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- RHSA-2026:0932Red Hat Product SecurityHigh
Red Hat Security Advisory: java-1.8.0-openjdk security update
- RHSA-2026:0933Red Hat Product SecurityHigh
Red Hat Security Advisory: java-25-openjdk security update
- RHSA-2026:0901Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenJDK 25.0.2 Security Update for Portable Linux Builds
- RHSA-2026:0899Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenJDK 21.0.10 Security Update for Portable Linux Builds
- RHSA-2026:0897Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenJDK 17.0.18 Security Update for Portable Linux Builds
- RHSA-2026:0895Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenJDK 8u482 Security Update for Portable Linux Builds
- +12 more
Patch Availability(28)
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
(9 across 9 ecosystems)
Alpine:v3.20(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng | — |
| — |
Alpine:v3.21(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng | — |
| — |
Alpine:v3.22(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng | — |
| — |
Alpine:v3.23(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng | — |
| — |
Alpine:v3.24(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng | — |
| — |
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng1.6 | 1.6.37-3 |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng1.6 | 1.6.39-2 |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng1.6 | 1.6.48-1 |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| libpng1.6 | 1.6.48-1, 1.6.49-1~exp1, 1.6.50-1, 1.6.50-1~exp1 |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(7)
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.
- Red HatRHSA-2026:0125IMPORTANT2025-11-24
RHSA-2026:0125 — Important
- Red HatRHSA-2026:0210IMPORTANT2025-11-24
RHSA-2026:0210 — Important
- Red HatRHSA-2026:0211IMPORTANT2025-11-24
RHSA-2026:0211 — Important
- Red HatRHSA-2026:0212IMPORTANT2025-11-24
RHSA-2026:0212 — Important
- Red HatRHSA-2026:0216IMPORTANT2025-11-24
RHSA-2026:0216 — Important
- Red HatRHSA-2026:0234IMPORTANT2025-11-24
RHSA-2026:0234 — Important
- Red HatRHSA-2026:0237IMPORTANT2025-11-24
RHSA-2026:0237 — Important
Data Freshness Timeline
(refreshed 9× in last 7d / 42× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 96 of 203 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 107 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-27 12:17 UTCEG score recompute
- 2026-10-27 12:17 UTCVendor advisory
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
- 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.3% · 19th percentile
- 2026-10-25 16:10 UTCEG score recompute
- 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-18 20:31 UTCEG score recompute
- 2026-10-18 20:31 UTCVendor advisory
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-18 05:19 UTCEG score recompute
- 2026-10-17 23:15 UTCEG score recompute
- 2026-10-17 23:15 UTCVendor advisory
- 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
Show 71 moreShow fewer
- 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-12 16:49 UTCEG score recompute
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-11 20:23 UTCEG score recompute
- 2026-10-11 18:36 UTCEG score recompute
- 2026-10-11 15:10 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-08 17:10 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-01 10:10 UTCOSV refresh
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-19 15:42 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-15 03:10 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-12 09:53 UTCOSV refresh
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-24 15:02 UTCOSV refresh
- 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
- 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-08 09:27 UTCEG score recompute
- 2026-08-08 09:27 UTCVendor advisory
- 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
Publicly available exploits
(1 reference)Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.
- Open source ↗GitHub PoCNeo-Neo6/CVE-2025-65018-Heap-buffer-overflow-in-libpng-ps4-ps5-Published Nov 23, 2025
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownAlpine:v3.20:libpng
Same vendor
10 shownredhat:RHSA-2026:0125 · redhat:RHSA-2026:0847 · redhat:RHSA-2026:6732
Frequently asked(5)
What is CVE-2025-65018?
When was the CVE record for CVE-2025-65018 published?
Is CVE-2025-65018 actively exploited?
What is the CVSS score of CVE-2025-65018?
How do I remediate CVE-2025-65018?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-65018
Is Your Infrastructure Affected by CVE-2025-65018?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.