How severe is CVE-2002-1816?

CVE-2002-1816 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-2002-1816 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1816?

CVE-2002-1816 affects Redshift Atphttpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-1816?

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-2002-1816 published?

CVE-2002-1816 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1816

CVE-2002-1816 is a critical-severity vulnerability in Redshift Atphttpd with a CVSS 3.x base score of 9.8. 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-193.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-193
Affected product: Redshift Atphttpd
Published: 2002-12-31
Last modified: 2026-06-16

Description

Off-by-one buffer overflow in the sock_gets function in sockhelp.c for ATPhttpd 0.4b and earlier allows remote attackers to execute arbitrary code via a long HTTP GET request.

Frequently asked questions

What is CVE-2002-1816?: Off-by-one buffer overflow in the sock_gets function in sockhelp.c for ATPhttpd 0.4b and earlier allows remote attackers to execute arbitrary code via a long HTTP GET request.
How severe is CVE-2002-1816?: CVE-2002-1816 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-2002-1816 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1816?: CVE-2002-1816 affects Redshift Atphttpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-1816?: 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-2002-1816 published?: CVE-2002-1816 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:redshift:atphttpd:*:*:*:*:*:*:*:*

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