CVE-2026-74977Disclosure(mozilla / firefox)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-190

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • firefox
  • thunderbird

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
firefoxthunderbird

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-25: 1Technical Details · 2026-08-25: 108-25
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • MalwareObserver@MalwareObserver
    Disclosure

    🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-74977](https://bugzilla.mozilla.org/show_bug.cgi?id=2028440) Integer overflow in the Gr... https://bugzilla.mozilla.org/show_bug.cgi?id=2028440 #ZeroDay #PatchManagement #Vulnerability

    Post summary

    The tweet announces CVE-2026-74977 as an integer overflow flaw referenced on Bugzilla, without providing PoC, exploit, or patch information.

    0000042
    27 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillathunderbird---

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