CVE-2026-92240
EUVD-2026-7924415.09.2026, 20:19
A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by sending an untagged '* ID' response, crashing Thunderbird. The affected parsing path is reachable before authentication. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| mozilla | thunderbird | 𝑥 < 140.16.0 |
| mozilla | thunderbird | 141.0 ≤ 𝑥 < 153.3.0 |
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 | 154.0 ≤ 𝑥 < 156.0 | CNA |
| mozilla | thunderbird_esr | 𝑥 < 140.16.0 | CNA |
| mozilla | thunderbird_esr | 141.0 ≤ 𝑥 < 153.3.0 | CNA |
Debian Releases
Ubuntu Releases
Ubuntu Product | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
| ||||||||||
| thunderbird |
| ||||||||||
| mozjs38 |
| ||||||||||
| mozjs52 |
| ||||||||||
| mozjs68 |
| ||||||||||
| mozjs78 |
| ||||||||||
| mozjs91 |
| ||||||||||
| mozjs102 |
| ||||||||||
| mozjs115 |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| MozillaThunderbird |
| ||||||||
| MozillaThunderbird-translations-common |
| ||||||||
| MozillaThunderbird-translations-other |
|
Common Weakness Enumeration
Vulnerability Media Exposure