How severe is CVE-1999-0926?

CVE-1999-0926 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-1999-0926 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-1999-0926?

CVE-1999-0926 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0926?

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-1999-0926 published?

CVE-1999-0926 was published on 1999-09-03 and last updated on 2026-06-16.

CVE-1999-0926

CVE-1999-0926 is a critical-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Http Server
Published: 1999-09-03
Last modified: 2026-06-16

Description

Apache allows remote attackers to conduct a denial of service via a large number of MIME headers.

Frequently asked questions

What is CVE-1999-0926?: Apache allows remote attackers to conduct a denial of service via a large number of MIME headers.
How severe is CVE-1999-0926?: CVE-1999-0926 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0926 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-1999-0926?: CVE-1999-0926 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0926?: 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-1999-0926 published?: CVE-1999-0926 was published on 1999-09-03 and last updated on 2026-06-16.

References

http://archives.neohapsis.com/archives/bugtraq/1998_3/0742.html

Affected products (1)

cpe:2.3:a:apache:http_server:1.2.5:*:*:*:*:*:*:*

More vulnerabilities in Apache Http Server

CVE-2010-0425 — Critical (CVSS 10.0): modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and…
CVE-2005-2700 — Critical (CVSS 10.0): ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host…
CVE-2004-0492 — Critical (CVSS 10.0): Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a…
CVE-2003-0789 — Critical (CVSS 10.0): mod_cgid in Apache before 2.0.48, when using a threaded MPM, does not properly handle CGI redirect paths, which could…
CVE-1999-1293 — Critical (CVSS 10.0): mod_proxy in Apache 1.2.5 and earlier allows remote attackers to cause a denial of service via malformed FTP commands,…
CVE-1999-1237 — Critical (CVSS 10.0): Multiple buffer overflows in smbvalid/smbval SMB authentication library, as used in Apache::AuthenSmb and possibly…

All CVEs affecting Apache Http Server →