Buffer overflow in Google Android
CVE-2021-30521
Heap buffer overflow in Autofill in Google Chrome on Android prior to 91.0.4472.77 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (70.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Google Android
- Google Chrome — versions unspecified
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- crbug.com/1208721 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Release Notes, Vendor Advisory)
- security.gentoo.org/glsa/202107-06 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-30521?
- CVE-2021-30521 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-06-07.
- How severe is CVE-2021-30521?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-30521 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.