How severe is CVE-2001-0609?

CVE-2001-0609 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2001-0609 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0609?

CVE-2001-0609 affects Infodrom Cfingerd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0609?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2001-0609 published?

CVE-2001-0609 was published on 2001-08-02 and last updated on 2026-06-16.

CVE-2001-0609

CVE-2001-0609 is a critical-severity vulnerability in Infodrom Cfingerd with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-193.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-193
Affected product: Infodrom Cfingerd
Published: 2001-08-02
Last modified: 2026-06-16

Description

Format string vulnerability in Infodrom cfingerd 1.4.3 and earlier allows a remote attacker to gain additional privileges via a malformed ident reply that is passed to the syslog function.

Frequently asked questions

What is CVE-2001-0609?: Format string vulnerability in Infodrom cfingerd 1.4.3 and earlier allows a remote attacker to gain additional privileges via a malformed ident reply that is passed to the syslog function.
How severe is CVE-2001-0609?: CVE-2001-0609 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2001-0609 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0609?: CVE-2001-0609 affects Infodrom Cfingerd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0609?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2001-0609 published?: CVE-2001-0609 was published on 2001-08-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:infodrom:cfingerd:*:*:*:*:*:*:*:*

More vulnerabilities in Infodrom Cfingerd

CVE-2001-0735 — High (CVSS 7.2): Buffer overflow in cfingerd 1.4.3 and earlier with the ALLOW_LINE_PARSING option enabled allows local users to execute…
CVE-1999-0708 — High (CVSS 7.2): Buffer overflow in cfingerd allows local users to gain root privileges via a long GECOS field.
CVE-1999-0813 — High (CVSS 7.2): Cfingerd with ALLOW_EXECUTION enabled does not properly drop privileges when it executes a program on behalf of the…
CVE-1999-0259 — Medium (CVSS 5.0): cfingerd lists all users on a system via search.**@target.

All CVEs affecting Infodrom Cfingerd →

Other CWE-193 (Off-by-one Error) vulnerabilities

CVE-2024-10442 — Critical (CVSS 10.0): Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066,…
CVE-2026-53309 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions()…
CVE-2024-38441 — Critical (CVSS 9.8): Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to…
CVE-2023-46853 — Critical (CVSS 9.8): In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n is used…
CVE-2023-38429 — Critical (CVSS 9.8): An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/connection.c in ksmbd has an off-by-one error in…
CVE-2022-34970 — Critical (CVSS 9.8): Crow before 1.0+4 has a heap-based buffer overflow via the function qs_parse in query_string.h. On successful…

Browse all CWE-193 (Off-by-one Error) vulnerabilities →