VulnSocial

CVE-2026-66140Patch(exim / exim)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch exim exim systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled.

exim CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-24

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • exim

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
exim
Products
exim

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-24: 1Patch / Workaround · 2026-07-24: 107-24
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Daily CyberSecurity@Daily_CyberSec
    Patch

    The two flaws now carry official CVE identifiers (CVE-2026-66140 & CVE-2026-66141). Both are fixed in Exim 4.99.5. https://x.com/Daily_CyberSec/status/2079977441808822748

    Post summary

    Two Exim vulnerabilities (CVE-2026-66140 and CVE-2026-66141) have been officially identified and patched in Exim 4.99.5, with no evidence of active exploitation or PoC disclosed.

    00070731
    12.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appeximexim---

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