CVE-2026-100801
EUVD-2026-8895429.09.2026, 13:17
Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 159, Firefox ESR 153.6, Thunderbird 159, Thunderbird 153.6, Firefox 157, and Firefox ESR 140.17.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| mozilla | thunderbird | 𝑥 < 140.17.0 |
| mozilla | thunderbird | 141.0 ≤ 𝑥 < 153.4.0 |
| mozilla | thunderbird | 154.0 ≤ 𝑥 < 157.0 |
| mozilla | firefox | 𝑥 < 140.17.0 |
| mozilla | firefox | 141.0 ≤ 𝑥 < 153.4.0 |
| mozilla | firefox | 154.0.0 ≤ 𝑥 < 157.0.0 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources
(CNA/ADP records, vendor advisories, Enginsight analysis).
| Vendor | Product | Version | Source |
|---|---|---|---|
| mozilla | thunderbird | 𝑥 < 159 | CNA |
| mozilla | thunderbird_esr | 𝑥 < 140.17.0 | CNA |
| mozilla | thunderbird_esr | 141.0 ≤ 𝑥 < 153.4.0 | CNA |
| mozilla | firefox | 𝑥 < 159 | CNA |
| mozilla | firefox_esr | 116.0.0 ≤ 𝑥 < 140.17.0 | CNA |
| mozilla | firefox_esr | 141.0 ≤ 𝑥 < 153.4.0 | CNA |
Debian Releases
Debian Product | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
| ||||||||||||
| firefox-esr |
| ||||||||||||
| thunderbird |
|
Ubuntu Releases
Ubuntu Product | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
| ||||||||||
| thunderbird |
| ||||||||||
| mozjs38 |
| ||||||||||
| mozjs52 |
| ||||||||||
| mozjs68 |
| ||||||||||
| mozjs78 |
| ||||||||||
| mozjs91 |
| ||||||||||
| mozjs102 |
| ||||||||||
| mozjs115 |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MozillaFirefox |
| ||||||||||||||||||||||
| MozillaFirefox-devel |
| ||||||||||||||||||||||
| MozillaFirefox-translations-common |
| ||||||||||||||||||||||
| MozillaFirefox-translations-other |
| ||||||||||||||||||||||
| MozillaThunderbird |
| ||||||||||||||||||||||
| MozillaThunderbird-translations-common |
| ||||||||||||||||||||||
| MozillaThunderbird-translations-other |
|
Red Hat Enterprise Linux Releases
Amazon Linux Releases
Common Weakness Enumeration
Vulnerability Media Exposure
References