CVE-2026-45527

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cisa-adp, epss
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In convertCleanApertureToRect of HeifCleanAperture.cpp, there is a possible way to cause a temporary denial of service due to an integer overflow. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

Android Security Bulletin—September 2026  |  Android Open Source Project

https://source.android.com/docs/security/bulletin/2026/2026-09-01

Vendor Advisories for CVE-2026-45527(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 34× 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.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-20 09:19 UTCEG score recompute
  3. 2026-09-20 09:19 UTCGHSA enrichment
  4. 2026-09-19 07:26 UTCEG score recompute
  5. 2026-09-19 07:26 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 05:34 UTCEG score recompute
  8. 2026-09-18 05:34 UTCGHSA enrichment
  9. 2026-09-17 19:31 UTCEPSS rescore
  10. 2026-09-17 03:42 UTCEG score recompute
  11. 2026-09-17 03:42 UTCGHSA enrichment
  12. 2026-09-16 14:08 UTCEPSS rescore
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-16 01:49 UTCEG score recompute
  15. 2026-09-16 01:49 UTCGHSA enrichment
  16. 2026-09-14 23:56 UTCGHSA enrichment
  17. 2026-09-13 22:03 UTCEG score recompute
  18. 2026-09-13 22:03 UTCGHSA enrichment
  19. 2026-09-13 16:47 UTCEPSS rescore
  20. 2026-09-12 20:10 UTCEG score recompute
  21. 2026-09-12 20:10 UTCGHSA enrichment
  22. 2026-09-12 15:01 UTCEPSS rescore
  23. 2026-09-11 18:17 UTCEG score recompute
  24. 2026-09-11 18:17 UTCGHSA enrichment
  25. 2026-09-11 14:53 UTCEPSS rescore
Show 9 more
  1. 2026-09-11 09:37 UTCEPSS rescore
  2. 2026-09-10 16:24 UTCGHSA enrichment
  3. 2026-09-10 15:45 UTCEG score recompute▲ 4.30
  4. 2026-09-10 15:45 UTCGHSA enrichment
  5. 2026-09-10 15:44 UTCMITRE cvelistV5CVSS v3 → 4.3 · severity → MEDIUM
  6. 2026-09-10 09:34 UTCEPSS rescore
  7. 2026-09-08 19:30 UTCNVD update
  8. 2026-09-08 18:31 UTCEG score recompute
  9. 2026-09-08 18:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45527?
CVE-2026-45527 is a medium vulnerability published on September 8, 2026. In convertCleanApertureToRect of HeifCleanAperture.cpp, there is a possible way to cause a temporary denial of service due to an integer overflow. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
When was CVE-2026-45527 disclosed?
CVE-2026-45527 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45527 actively exploited?
CVE-2026-45527 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.2% of all scored CVEs.
What is the CVSS score of CVE-2026-45527?
CVE-2026-45527 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-45527?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45527, 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

Explore the affected products and dependency analysis for CVE-2026-45527

Explore →

Is Your Infrastructure Affected by CVE-2026-45527?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs