Medium 6.5Published Jun 22, 2010

CVE-2010-1637The 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 POP…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects squirrelmail and 6 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

squirrelmail squirrelmail squirrelmail:squirrelmail	through 1.4.20	NVD
fedoraproject fedora fedoraproject:fedora	11; 12; 13	NVD
apple mac_os_x apple:mac_os_x	before 10.6.8	NVD
apple mac_os_x_server apple:mac_os_x_server	before 10.6.8	NVD
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop	5.0	NVD
redhat enterprise_linux_server redhat:enterprise_linux_server	5.0	NVD
redhat enterprise_linux_workstation redhat:enterprise_linux_workstation	5.0	NVD

References

References

http://conference.hitb.org/hitbsecconf2010dxb/materials/D1%20-%20Laurent%20Oudot%20-%20Improving%20the%20Stealthiness%20of%20Web%20Hacking.pdf#page=69	broken-link
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html	mailing-list
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043239.html	mailing-list
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043258.html	mailing-list
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043261.html	mailing-list
http://rhn.redhat.com/errata/RHSA-2012-0103.html	third-party-advisory
http://secunia.com/advisories/40307	broken-link
http://squirrelmail.org/security/issue/2010-06-21	patch, vendor-advisory
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail/branches/SM-1_4-STABLE/squirrelmail/plugins/mail_fetch/functions.php?r1=13951&r2=13950&pathrev=13951	product
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail/branches/SM-1_4-STABLE/squirrelmail/plugins/mail_fetch/options.php?r1=13951&r2=13950&pathrev=13951	patch
1–10 of 20

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.