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No exploitation reportedFix availableAwaiting NVD analysis

CVE-2026-58956

No exploitation reported by the sources we read.

  • Published2026-11-02
  • WeaknessCWE-693

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In modpowF4 of avb_rsa.c, there is a possible signature verification bypass due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Timeline

dates in UTC
  1. 2026-11-0219:54CVE publishedCNA

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-58956?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-58956?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

Products declared by the CNA1 product

As google_android, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Google Androidother versions: not affected
    Affected
    • = 17no fix stated
    • = 16-qpr2no fix stated
    • = 16no fix stated
    • = 15no fix stated
    • = 14no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-02

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • platform/external/avbAndroidfrom 14:0 · fixed in 14:2026-11-01
  • platform/external/avbAndroidfrom 15:0 · fixed in 15:2026-11-01
  • platform/external/avbAndroidfrom 16-qpr2:0 · fixed in 16-qpr2:2026-11-01
  • platform/external/avbAndroidfrom 16:0 · fixed in 16:2026-11-01
  • platform/external/avbAndroidfrom 17-qpr2-next:0 · fixed in 17-qpr2-next:2026-11-01
  • platform/external/avbAndroidfrom 17:0 · fixed in 17:2026-11-01

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-11-02
Last Modified
2026-11-03
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-xw9j-cc7f-69wg

Frequently asked questions

What is CVE-2026-58956?

In modpowF4 of avb_rsa.c, there is a possible signature verification bypass due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Is CVE-2026-58956 actively exploited?

Active exploitation of CVE-2026-58956 has not been confirmed. Its EPSS score was 0.1% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-58956?

CVE-2026-58956 has a CVSS v3 base score of 8.4 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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