How severe is CVE-2010-3903?

CVE-2010-3903 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2010-3903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3903?

CVE-2010-3903 primarily affects Infradead Openconnect. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3903?

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

When was CVE-2010-3903 published?

CVE-2010-3903 was published on 2010-10-14 and last updated on 2026-06-16.

CVE-2010-3903

CVE-2010-3903 is a medium-severity vulnerability in Infradead Openconnect with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Infradead Openconnect
Published: 2010-10-14
Last modified: 2026-06-16

Description

Unspecified vulnerability in OpenConnect before 2.23 allows remote AnyConnect SSL VPN servers to cause a denial of service (application crash) via a 404 HTTP status code.

Frequently asked questions

What is CVE-2010-3903?: Unspecified vulnerability in OpenConnect before 2.23 allows remote AnyConnect SSL VPN servers to cause a denial of service (application crash) via a 404 HTTP status code.
How severe is CVE-2010-3903?: CVE-2010-3903 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2010-3903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3903?: CVE-2010-3903 primarily affects Infradead Openconnect. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-3903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-3903 published?: CVE-2010-3903 was published on 2010-10-14 and last updated on 2026-06-16.

References

http://www.infradead.org/openconnect.html

Affected products (13)

cpe:2.3:a:infradead:openconnect:*:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:1.00:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:1.10:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:1.20:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:1.30:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:1.40:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.00:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.01:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.10:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.11:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.12:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.20:*:*:*:*:*:*:*
cpe:2.3:a:infradead:openconnect:2.21:*:*:*:*:*:*:*

More vulnerabilities in Infradead Openconnect

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CVE-2019-16239 — Critical (CVSS 9.8): process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunked…
CVE-2012-3291 — High (CVSS 7.8): Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted…
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