CVE-2022-0977

Exp

Use after free in Browser UI in Google Chrome on Chrome OS prior to 99.0.4844.74 allowed a remote attacker who convinced a user to engage in specific user interaction to potentially exploit heap corruption via a crafted HTML page.

Published: 2022-07-21 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-0977 is rated High Exploit Risk (72.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.88%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-0977

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-0977

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-18 0.76% 0.88% +0.12%
2 2026-06-26 0.75% 0.76% +0.01%
3 2026-06-15 — 0.75% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-0977

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.6 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 6.0 [email protected]

Weakness enumeration for CVE-2022-0977

OS Trackers for CVE-2022-0977

vendor priority summary link
debian not yet assigned CVE-2022-0977 not yet assigned priority: Debian including 1 source packages (chromium), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-0977
gentoo high CVE-2022-0977: 1 GLSA(s) (202208-25), 4 atom(s) (dev-qt/qtwebengine, www-client/chromium, www-client/google-chrome, www-client/microsoft-edge); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-0977
ubuntu medium CVE-2022-0977 medium priority: Ubuntu including 1 source packages (chromium-browser), 7 status rows across 7 suites (bionic, focal, impish, jammy, trusty, upstream, xenial): DNE 2, not-affected 2, released 2, ignored 1. https://ubuntu.com/security/CVE-2022-0977

Affected software / configurations for CVE-2022-0977

Vendor Product Version Raw CPE
google chrome < 99.0.4844.74 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

References for CVE-2022-0977

URL Tags
https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop_15.html Release Notes Vendor Advisory
https://crbug.com/1299225 Exploit Issue Tracking Patch Vendor Advisory
https://security.gentoo.org/glsa/202208-25 Third Party Advisory
cvelogic Threat Intelligence