How severe is CVE-2010-1192?

CVE-2010-1192 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2010-1192 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1192?

CVE-2010-1192 primarily affects Stafford.uklinux Libesmtp. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-1192?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-1192 published?

CVE-2010-1192 was published on 2010-03-31 and last updated on 2026-06-16.

CVE-2010-1192

CVE-2010-1192 is a medium-severity vulnerability in Stafford.uklinux Libesmtp with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Stafford.uklinux Libesmtp
Published: 2010-03-31
Last modified: 2026-06-16

Description

libESMTP, probably 1.0.4 and earlier, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Frequently asked questions

What is CVE-2010-1192?: libESMTP, probably 1.0.4 and earlier, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
How severe is CVE-2010-1192?: CVE-2010-1192 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2010-1192 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1192?: CVE-2010-1192 primarily affects Stafford.uklinux Libesmtp. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1192?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-1192 published?: CVE-2010-1192 was published on 2010-03-31 and last updated on 2026-06-16.

References

Affected products (31)

cpe:2.3:a:stafford.uklinux:libesmtp:*:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.1:-:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.1:a:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.2:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.3:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.4:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.5:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.6:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.6:a:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.2:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.3:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.4:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.5:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.6:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.7:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.8:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.9:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.10:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.10:p1:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.11:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:0.8.12:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:1.0:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:stafford.uklinux:libesmtp:1.0.3:*:*:*:*:*:*:*

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