CVE-2022-2294
CVE-2022-2294 is a security flaw in WebRTC. A booby-trapped web page can run an attacker's code through WebRTC. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 25 Aug 2022, and says ransomware gangs have used it.[1]
WebRTC is business software or equipment. Most families won’t have it, but attackers break into it to get inside companies, and from there to what those companies hold about their customers, patients and staff. Fixed in version 103.0.5060.114 of Chrome.
Description
CISA calls it a heap buffer overflow in WebRTC WebRTC. In its words: “WebRTC, an open-source project providing web browsers with real-time communication, contains a heap buffer overflow vulnerability that allows an attacker to perform shellcode execution. This vulnerability impacts web browsers using WebRTC including but not limited to Google Chrome.”[1]
The underlying weakness is heap buffer overflow (CWE-122), in MITRE’s list of common software weaknesses.[2]
It scores 8.8 out of 10 on the Common Vulnerability Scoring System, which rates it high, scored by NVD using CVSS 3.1.[2]
Affected versions
NVD’s record lists one fixed version: everything before it is affected.[2]
| Product | Fixed in |
|---|---|
| Chrome | 103.0.5060.114 |
Most families won’t have WebRTC; it’s for whoever looks after IT at work.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 25 Aug 2022, 28 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 15 Sep 2022 to fix it.[1] CISA says ransomware gangs have used it.
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 71%. That’s in the top 1% of the flaws it scores.[4]
CISA assesses it as not automatable: each attack takes some work.
CISA doesn’t say who was attacked, or how.
Fix
WebRTC has published a fix or advice.[3] CISA’s required action: “Apply updates per vendor instructions.”[1]
- Check whether you use it.WebRTC is business software or equipment, so most families won’t have it. If you run a business, or work from home on company equipment, ask whoever looks after your IT.
- Send this page to your IT person.Ask them to confirm it’s fixed (fixed in version 103.0.5060.114 of Chrome), or not in use. CISA gave US government agencies until 15 Sep 2022 to fix it.
- If it can’t be fixed, take it offline.CISA’s advice when there’s no fix is to stop using the product, or take it off the internet, until there is one.
You can’t fix someone else’s server, but you can watch for what follows a break-in like this: a breach notice, a password reset you didn’t ask for, or a scam message that knows things it shouldn’t. HARD watches for those for you and your family.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 8.8.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks, noting that ransomware gangs have used it.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 71%.[4] |
See also
Other heap buffer overflow flaws
- CVE-2026-94127, F5 BIG-IP APM: heap-based buffer overflow ·
- CVE-2025-25249, Fortinet products: heap-based buffer overflow ·
- CVE-2026-85880, Microsoft Windows: heap-based buffer overflow ·
- CVE-2025-32706, Microsoft Windows: common log file system (CLFS) driver heap-based buffer overflow ·
- CVE-2025-24993, Microsoft Windows: NTFS heap-based buffer overflow ·
Added the same day
- CVE-2022-26352, dotCMS: unrestricted upload of file ·
- CVE-2022-24706, Apache CouchDB: insecure default initialization of resource ·
- CVE-2022-24112, Apache APISIX: authentication bypass ·
- CVE-2022-22963, VMware Tanzu Spring Cloud: function remote code execution ·
- CVE-2021-39226, Grafana Labs Grafana: authentication bypass ·
References
- ^ Cybersecurity and Infrastructure Security Agency. “WebRTC Heap Buffer Overflow Vulnerability”. Known Exploited Vulnerabilities Catalog, added 25 Aug 2022.
- ^ National Institute of Standards and Technology. “CVE-2022-2294 Detail”. National Vulnerability Database, published 28 Jul 2022.
- ^ WebRTC. Advisories and fixes: groups.google.com, chromereleases.googleblog.com.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.708, percentile 99.4, 31 Oct 2026.
- CVE Program. “CVE-2022-2294”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.