CVE-1999-0236

Exp

ScriptAlias directory in NCSA and Apache httpd allowed attackers to read CGI programs.

Published: 1997-01-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0236 is rated High Exploit Risk (84.2/100): CVSS High severity, with high exploitation likelihood (EPSS 25.79%, 98th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +11.72% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-0236

EDB-ID Source Kind Published Link
20595 exploit_db edb 1999-09-25 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0236

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 14.07% 25.79% +11.72%
2 2026-04-30 17.64% 14.07% -3.58%
3 2026-01-20 — 17.64% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0236

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-1999-0236

OS Trackers for CVE-1999-0236

vendor priority summary link
alpine — CVE-1999-0236: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0236

Affected software / configurations for CVE-1999-0236

Vendor Product Version Raw CPE
apache http_server < 1.0 cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
illinois ncsa_httpd — cpe:2.3:a:illinois:ncsa_httpd:-:*:*:*:*:*:*:*

References for CVE-1999-0236

cvelogic Threat Intelligence