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Fencer Intel
medium 6.5

CVE-2010-1637 json

The Mail Fetch plugin in SquirrelMail 1.4.20 and earlier allows remote authenticated users to bypass firewall restrictions and use Squirrel…

published 16y ago modified 4mo ago also EUVD-2010-1658

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

The Mail Fetch plugin in SquirrelMail 1.4.20 and earlier allows remote authenticated users to bypass firewall restrictions and use SquirrelMail as a proxy to scan internal networks via a modified POP3 port number.

Patch / fix

  • apple mac_os_x 10.6.8
  • apple mac_os_x_server 10.6.8
  • squirrelmail RHEL 4 1.4.8-18.el4
  • squirrelmail RHEL 5 1.4.8-5.el5_7.13

red hat advisories RHSA-2012:0103

Is CVE-2010-1637 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-1637 updated cvss 3.5

SquirrelMail: Mail Fetch plugin -- port-scans via non-standard POP3 server ports

  • Red Hat Enterprise Linux (v. 5 server) squirrelmail 1.4.8-5.el5_7.13 Red Hat Enterprise Linux AS version 4 squirrelmail 1.4.8-18.el4 Red Hat Enterprise Linux Desktop version 4 squirrelmail 1.4.8-18.el4 Red Hat Enterprise Linux ES version 4 squirrelmail 1.4.8-18.el4 Red Hat Enterprise Linux WS version 4 squirrelmail 1.4.8-18.el4 Red Hat RHEL Desktop Workstation (v. 5 client) squirrelmail 1.4.8-5.el5_7.13
    fixed: vendor fix RHSA-2012:0103

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.68% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.