8.6
High
CVE-2026-110249 A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an…
Description
A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Thunderbird 158 | earliest → < 158 | 158 |
| Thunderbird 153.5 | earliest → < 153.5 | 153.5 |
References
- bugzilla.mozilla.org bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
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