Out-of-bounds write in Google Chrome
Priority MEDIUM 44CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 9 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
Why it matters now
EPSS 0.03612 89th percentileScored 2026-11-07
Fix Partial Chrome (Google): 91.0.4472.101Red Hat: 8 advisoriesRed Hat: 9 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Chrome | before 91.0.4472.101 | 91.0.4472.101 | Patch available | CNA |
- Chrome VendorGoogle Affected before 91.0.4472.101 Fixed in 91.0.4472.101 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* | before 91.0.4472.101 | Vulnerable | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 97.0 | Vulnerable | Mozilla |
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 91.0.4472.101 Vulnerable ·Google
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 97.0 Vulnerable ·Mozilla
Remediation
- Fix · CNA Chrome (Google) Fixed in 91.0.4472.101
Red Hat 8 advisories
- RHSA-2021:2914 Released 2021-07-27 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird-78.12.0-2.el8_2
- RHSA-2021:2881 Released 2021-07-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-78.12.0-2.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-78.12.0-2.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-78.12.0-2.el7_9
- RHSA-2021:2883 Released 2021-07-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-78.12.0-3.el8_4
Show 5 more Red Hat advisories
- RHSA-2021:2882 Released 2021-07-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) thunderbird-78.12.0-2.el8_1
- RHSA-2021:2743 Released 2021-07-15 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-78.12.0-1.el8_4
- RHSA-2021:2742 Released 2021-07-15 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox-78.12.0-1.el8_2
- RHSA-2021:2741 Released 2021-07-15 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-78.12.0-1.el7_9
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-78.12.0-1.el7_9
- Red Hat Enterprise Linux Server (v. 7) firefox-78.12.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-78.12.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) firefox-78.12.0-1.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-78.12.0-1.el7_9
- RHSA-2021:2740 Released 2021-07-15 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) firefox-78.12.0-1.el8_1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 91.0.4472.101
10 records Highest priority Priority CRITICAL 1 CRITICAL, 9 MEDIUM
Other records, highest priority first
- TI-2021-10946 Type confusion in Google ChromePriority CRITICAL 97
- TI-2021-10939 Use after free in Google ChromePriority MEDIUM 41
- TI-2021-10948 Use after free in Google ChromePriority MEDIUM 40
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:2743, RHSA-2021:2883 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.1) | Fixed | RHSA-2021:2740, RHSA-2021:2882 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2021:2742, RHSA-2021:2914 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2021:2741, RHSA-2021:2881 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2021:2741 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:2741 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2021:2741, RHSA-2021:2881 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:2741, RHSA-2021:2881 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2021:2741 |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30547
- 2026-10-03 Alias added: GHSA-h3c6-pc9c-gf82
References
Advisory 10
- https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html
- https://crbug.com/1210414
- FEDORA-2021-f94dadff78
- DSA-4939
- [debian-lts-announce] 20210715 [SECURITY] [DLA 2709-1] firefox-esr security update
- FEDORA-2021-ca58c57bdf
- DSA-4940
- [debian-lts-announce] 20210719 [SECURITY] [DLA 2711-1] thunderbird security update
- GLSA-202202-03
- GLSA-202208-14
More Google Chrome vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2021-30547 · CVE Program
- CVE-2021-30547 · NVD
- FIRST EPSS
- GHSA-h3c6-pc9c-gf82 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-30547 · Red Hat security data · CC BY 4.0
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