CVE-2026-113866Medium· 5.9▾ SunlitWhen setting up an account, Thunderbird's Exchange AutoDiscover lookup also queried the domain's AutoDiscover service over plain HTTP. Due to a bug, that unencrypted request included the credentials the user had entered, allowing a netwo…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the CISA ADP record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 22.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
When setting up an account, Thunderbird's Exchange AutoDiscover lookup also queried the domain's AutoDiscover service over plain HTTP. Due to a bug, that unencrypted request included the credentials the user had entered, allowing a network attacker to obtain the user's password. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.5.1.
ThunderbirdRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-113868Medium· 5.3Uninitialized memory disclosure and out-of-bounds read in POP3 and SMTP NTLM authentication
CVE-2026-113867Critical· 9.1Stanza injection in XMPP chat
CVE-2026-113869Medium· 5.4Use-after-free in S/MIME decryption during a security device password prompt
CVE-2026-118178NoneRSS feed could redirect its subscription to a local file or network share
CVE-2026-118175NoneContent of other messages could be included when replying to a crafted message
CVE-2026-118174NoneDisplaying a message could load an attacker-chosen URL through an OpenPGP key attachment