Vulnerability

CVE-2022-2294

High· 8.8KEVCVSS8.8EPSS1%

.rules3/5

WebRTC Heap Buffer Overflow Vulnerability

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.

Threat signal

98/100

Severe

Severity

high

CVSS

8.8

EPSS

Active

KEV

CISA KEV — actively exploited

Ransomware: Known1367d overdue

AffectedWebRTC — WebRTC

Added to KEV

2022-08-25

Federal patch due (BOD 22-01)

2022-09-15

Required action (CISA verbatim)

Apply updates per vendor instructions.

Vendor advisory + references

CISA description: “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.”

CVSS

v3.1Open in FIRST calculator →

8.8/ 10HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionRequiredRequires user action (click, file open, etc).
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactHighTotal loss of availability — full DoS possible.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

1.11%

probability of exploitation in next 30 days

p79

higher than 79% of all CVEs

3-day trend↓ 0.4pp

Mid-pack — moderate exploitation likelihood.

Vendor VEX

No VEX statements published for CVE-2022-2294. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAct

Active exploitation with total impact on essential/support systems

exploitation: active
automatable: yes
impact: total
mission: support

Lifecycle

2022-08-25Added to CISA KEVransomware: Known
2022-08-25Published
2022-09-15Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.