Nixpkgs security tracker
NIXPKGS-2026-2683
GitHub issue
published 4 hours ago
exim: security issues < 4.100.1
Permalink
CVE-2026-94054
7.0 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): Low (L)
- Integrity (I): High (H)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): Low (L)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): Low (L)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled …
Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.
Affected products
Exim
- <4.100.1
Package maintainers
-
@4z3 Tomislav Viljetić <tv@krebsco.de>
-
@dasJ Janne Heß <janne@hess.ooo>
-
@helsinki-Jo Joachim Ernst <joachim.ernst@helsinki-systems.de>
Permalink
CVE-2026-94055
3.7 LOW
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): Low (L)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Exim before 4.100.1, when certain non-default TLS settings are used …
Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.
Affected products
Exim
- <4.100.1
Package maintainers
-
@4z3 Tomislav Viljetić <tv@krebsco.de>
-
@dasJ Janne Heß <janne@hess.ooo>
-
@helsinki-Jo Joachim Ernst <joachim.ernst@helsinki-systems.de>
Permalink
CVE-2026-94057
4.0 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): None (N)
- Integrity (I): Low (L)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): Low (L)
- Modified Availability (MA): None (N)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Exim before 4.100.1 allows SMTP smuggling in which the received …
Exim before 4.100.1 allows SMTP smuggling in which the received message does not match any sent message, and instead depends on crafted data sent after a rejection during DATA processing.
Affected products
Exim
- <4.100.1
Package maintainers
-
@4z3 Tomislav Viljetić <tv@krebsco.de>
-
@dasJ Janne Heß <janne@hess.ooo>
-
@helsinki-Jo Joachim Ernst <joachim.ernst@helsinki-systems.de>
Permalink
CVE-2026-94056
7.5 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): Low (L)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled …
Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain uninitialized data from stack memory.
Affected products
Exim
- <4.100.1
Package maintainers
-
@4z3 Tomislav Viljetić <tv@krebsco.de>
-
@dasJ Janne Heß <janne@hess.ooo>
-
@helsinki-Jo Joachim Ernst <joachim.ernst@helsinki-systems.de>