In parseKnownActivityEmbeddingCerts of ParsingUtils.java, there is a possible permanent denial of service due to improper input validation.
Android is affected by a flaw in certificate parsing that can cause a permanent denial of service. Google's advisory rates it High. Fixed in Android 14, 15, 16, 16-qpr2, and 17.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 14, 15, 16, 16-qpr2, 17
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 14, 15, 16, 16-qpr2, 17.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 0/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Fix
- Fixed in 14, 15, 16, 16-qpr2, 17
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In parseKnownActivityEmbeddingCerts of ParsingUtils.java, there is a possible permanent denial of service due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
What to do
Upgrade to a fixed version: 14, 15, 16, 16-qpr2, 17.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Google Android
17, 16-qpr2, 16, 15, 14
Evidence 1
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-58817
What does this mean?
The flaw is in parseKnownActivityEmbeddingCerts in ParsingUtils.java. Improper input validation there can cause a permanent denial of service, meaning the affected component can stop working until it is fixed.Source: source.android.com
Am I affected, and how do I check?
The advisory names Google Android but does not list affected version ranges or setups. It lists fixed builds for Android 14, 15, 16, 16-qpr2, and 17, so compare your Android version against those branches and the advisory's security patch level.Source: source.android.com
What should I do about it?
Update to a fixed Android build on the 14, 15, 16, 16-qpr2, or 17 line. No workaround is listed in the facts.Source: source.android.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data