A buffer overflow occurs when drawing and validating elements using Direct 3D 9 with the ANGLE graphics library, used for WebGL content. This is due to an incorrect value being passed within the library during checks and results in a potentially exploitable crash. Note: This attack only affects Windows operating systems. Other operating systems are unaffected. This vulnerability affects Thunderbird < 52.5.2, Firefox ESR < 52.5.2, and Firefox < 57.0.2.
CVE-2017-7845
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 86.7%
- KEV
- Not listed
Published
June 11, 2018
Last Modified
November 25, 2025
References (12)
- security@mozillahttp://www.securityfocus.com/bid/102115
- security@mozillahttp://www.securitytracker.com/id/1040123
- security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=1402372
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2017-28/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2017-29/
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2017-30/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102115
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040123
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1402372
- af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-28/
- af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-29/
- af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-30/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 43× 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.
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- 2026-05-28 06:49 UTCGHSA enrichment
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- 2026-05-26 01:16 UTCOSV refresh
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Frequently asked(5)
What is CVE-2017-7845?
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What is the CVSS score of CVE-2017-7845?
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Dependency Blast Radius
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