Information disclosure in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
CVE-2026-74948
UNRATEDCVSS · not yet scoredTrending — 5 sources updated this week
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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EchelonGraph score
- Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
- EG Score
- —
- EG Risk
- —
- EPSS PROB
- 0%
- EPSS %ILE
- 6%
- KEV
- Not listed
Published
August 18, 2026
Last Modified
August 18, 2026
References (8)
- security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=2060106
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-74/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-75/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-76/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-77/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-78/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-79/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-80/
Vendor Advisories for CVE-2026-74948(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-18 19:25 UTCGHSA enrichment
- 2026-08-18 19:23 UTCNVD update
- 2026-08-18 19:06 UTCGHSA enrichment
- 2026-08-18 19:04 UTCMITRE cvelistV5
- 2026-08-18 13:19 UTCNVD update
- 2026-08-18 12:42 UTCEG score recompute
- 2026-08-18 12:41 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-74948?
CVE-2026-74948 is a publicly disclosed vulnerability published on August 18, 2026. Information disclosure in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
When was CVE-2026-74948 disclosed?
CVE-2026-74948 was first published in the National Vulnerability Database on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74948 actively exploited?
CVE-2026-74948 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.3% of all scored CVEs.
How do I remediate CVE-2026-74948?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74948, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-74948
Is Your Infrastructure Affected by CVE-2026-74948?
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