How severe is CVE-1999-0939?

CVE-1999-0939 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-0939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0939?

CVE-1999-0939 primarily affects Debian Debian Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0939?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-0939 published?

CVE-1999-0939 was published on 1999-08-26 and last updated on 2026-06-16.

CVE-1999-0939

CVE-1999-0939 is a medium-severity vulnerability in Debian Debian Linux with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Debian Debian Linux
Published: 1999-08-26
Last modified: 2026-06-16

Description

Denial of service in Debian IRC Epic/epic4 client via a long string.

Frequently asked questions

What is CVE-1999-0939?: Denial of service in Debian IRC Epic/epic4 client via a long string.
How severe is CVE-1999-0939?: CVE-1999-0939 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-0939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0939?: CVE-1999-0939 primarily affects Debian Debian Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0939 published?: CVE-1999-0939 was published on 1999-08-26 and last updated on 2026-06-16.

References

http://www.securityfocus.com/bid/605

Affected products (2)

cpe:2.3:o:debian:debian_linux:2.1:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:2.2:*:pre_potato:*:*:*:*:*

More vulnerabilities in Debian Debian Linux

CVE-2025-32433 — Critical (CVSS 10.0): Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.3, OTP-26.2.5.11, and…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42472 — Critical (CVSS 10.0): Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.14.0 and 1.15.10, a malicious…
CVE-2023-46604 — Critical (CVSS 10.0): The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote…
CVE-2022-30123 — Critical (CVSS 10.0): A sequence injection vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 which could allow is a possible shell…
CVE-2022-24884 — Critical (CVSS 10.0): ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()`…

All CVEs affecting Debian Debian Linux →