How severe is CVE-2007-1859?

CVE-2007-1859 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2007-1859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-1859?

CVE-2007-1859 affects Xscreensaver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-1859?

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

When was CVE-2007-1859 published?

CVE-2007-1859 was published on 2007-05-02 and last updated on 2026-06-16.

CVE-2007-1859

CVE-2007-1859 is a medium-severity vulnerability in Xscreensaver with a CVSS 2.0 base score of 4.6. 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Xscreensaver
Published: 2007-05-02
Last modified: 2026-06-16

Description

XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authentication.

Frequently asked questions

What is CVE-2007-1859?: XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authentication.
How severe is CVE-2007-1859?: CVE-2007-1859 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2007-1859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1859?: CVE-2007-1859 affects Xscreensaver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-1859 published?: CVE-2007-1859 was published on 2007-05-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:xscreensaver:xscreensaver:4.10:*:*:*:*:*:*:*

More vulnerabilities in Xscreensaver

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →