CVE-2026-2777
Published: February 24, 2026· Updated: Feb 25, 2026
Official Description
Privilege escalation in the Messaging System component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Technical Analysis
CVE-2026-2777 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
News & Research Mentioning CVE-2026-2777
Cybersecurity researchers have disclosed a security flaw in Gitea, an open-source, self-hosted platform for version control, that allows unauthenticated remote attackers to pull private container images from Gitea deployments without requiring an account, password, or other credentials. The vulnerability, tracked as CVE-2026-27771 (CVSS score: N/A), affects all versions of Gitea prior to 1.26.2 [xlite_meta score:50 src:The Hacker News xlite_fp:92996ecdc2a3de3ea95f33a7989aeb4a4c80fc3721d4e2c5af4c21e3f3cd3b06]
View CSAF Summary Successful exploitation of these vulnerabilities could enable attackers to gain unauthorized administrative control over vulnerable charging stations or disrupt charging services through denial-of-service attacks. The following versions of EV Energy ev.energy are affected: ev.energy vers:all/* (CVE-2026-27772, CVE-2026-24445, CVE-2026-26290, CVE-2026-25774) CVSS Vendor Equipment Vulnerabilities v3 9.4 EV Energy EV Energy ev.energy Missing Authentication for Critical Function, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration, Insufficiently Protected Credentials Background Critical Infrastructure Sectors: Energy, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters [xlite_meta score:63 src:CISA Alerts xlite_fp:804daf6deb55b55468ebac105f94f1ae9afb38044a86c3ad0935fba881486cd4]
View CSAF Summary Successful exploitation of these vulnerabilities could allow attackers to impersonate charging stations, hijack sessions, suppress or misroute legitimate traffic to cause large-scale denial of service, and manipulate data sent to the backend. The following versions of SWITCH EV swtchenergy.com are affected: swtchenergy.com vers:all/* (CVE-2026-27767, CVE-2026-25113, CVE-2026-25778, CVE-2026-27773) CVSS Vendor Equipment Vulnerabilities v3 9.4 SWITCH EV SWITCH EV swtchenergy.com Missing Authentication for Critical Function, Improper Restriction of Excessive Authentication Attempts, Insufficient Session Expiration, Insufficiently Protected Credentials Background Critical Infrastructure Sectors: Energy, Transportation Systems Countries/ [xlite_meta score:63 src:CISA Alerts xlite_fp:d18277bbdde0772a8f2eec37bc286212b473ab2c6da3a1e7dd3b7d5e6b1d96ec]
All References (6)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-2777 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts