CVE-2002-1816

highpriority · attend · 52EPSS 0.090 · 95 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

8.95% (95th) EPSS

CVSS 7.5 · high

Is it mine?

2 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-21

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-193USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-21936ATP HTTPd 0.4 - Single Byte Buffer Overflowfunctional · exploit_db

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
redshift atphttpd≤ 0.4bnvdUScpe:2.3:a:redshift:atphttpd:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2002-12-31modified 2026-06-16

related (325)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2021-3156US	high7.8	100.0% (100th)	KEV	2021-01-26
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line arg…
CVE-2003-0466US	critical9.8	78.1% (100th)	Exploit	2003-08-27
Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 throug…
CVE-2022-3786US	high7.5	92.5% (100th)	Exploit	2022-11-01
A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification…
CVE-2021-23017US	high7.7	53.5% (99th)	Exploit	2021-06-01
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in…
CVE-2001-0609US	critical9.8	18.2% (97th)	Exploit	2001-08-02
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 f…

+320 more

references (8)

External citations — patches, advisories, analysis.

http://archives.neohapsis.com/archives/bugtraq/2002-10/0187.html enisa_euvd
http://secunia.com/advisories/7293 enisa_euvd
http://www.iss.net/security_center/static/10362.php enisa_euvd
http://www.securityfocus.com/bid/5956 enisa_euvd
http://archives.neohapsis.com/archives/bugtraq/2002-10/0187.htmlBroken LinkExploitVendor Advisorynvd
http://secunia.com/advisories/7293Broken LinkVendor Advisorynvd
http://www.iss.net/security_center/static/10362.phpBroken Linknvd
http://www.securityfocus.com/bid/5956Broken LinkExploitPatchThird Party AdvisoryVDB Entrynvd

scry

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