CVE-2026-8972

⚠️ high

Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVSS Score

8.8

High

EPSS Score

0.0

Exploit Probability

Published Date

2026-05-19

First Seen: 2026-05-20

This CVE is High Risk - more severe than 81.1% of all 336,041 vulnerabilities in our database.

#63,447

Top 25% most severe

Severity Percentile

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

🏆 Discovered By

pakhunov.anton.n

SSVC data provided by CISA

Last Modified 2026-05-20

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE IDs (Weakness Types)

CWE-269

📦 Affected Products 2

Vendor	Product	Status	Affected Versions
mozilla	firefox	Affected	< 151.0.0
mozilla	thunderbird	Affected	< 151.0.0

Permissions Required

Vendor Advisory

Vendor Advisory

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-15718	🔶 medium	4.3	0.2	We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw....	2026-07-14
CVE-2026-15719	🔶 medium	5.4	0.1	We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw....	2026-07-14
CVE-2026-13356	🔶 medium	6.3	0.1	A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the brows...	2026-07-07
CVE-2026-57962	🔶 medium	5.3	0.2	A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitr...	2026-07-01
CVE-2026-57963	🔶 medium	6.5	0.2	An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, an...	2026-07-01
CVE-2026-14241	⛔ critical	9.8	0.2	Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume th...	2026-06-30

These CVEs affect the same products