How severe is CVE-2013-4508?

CVE-2013-4508 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2013-4508 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4508?

CVE-2013-4508 primarily affects Lighttpd. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4508?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-4508 published?

CVE-2013-4508 was published on 2013-11-08 and last updated on 2026-06-16.

CVE-2013-4508

CVE-2013-4508 is a high-severity vulnerability in Lighttpd with a CVSS 3.x base score of 7.5. 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-326.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Lighttpd
Published: 2013-11-08
Last modified: 2026-06-16

Description

lighttpd before 1.4.34, when SNI is enabled, configures weak SSL ciphers, which makes it easier for remote attackers to hijack sessions by inserting packets into the client-server data stream or obtain sensitive information by sniffing the network.

Frequently asked questions

What is CVE-2013-4508?: lighttpd before 1.4.34, when SNI is enabled, configures weak SSL ciphers, which makes it easier for remote attackers to hijack sessions by inserting packets into the client-server data stream or obtain sensitive information by sniffing the network.
How severe is CVE-2013-4508?: CVE-2013-4508 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2013-4508 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4508?: CVE-2013-4508 primarily affects Lighttpd. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4508?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-4508 published?: CVE-2013-4508 was published on 2013-11-08 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*

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All CVEs affecting Lighttpd →

Other CWE-326 (Inadequate Encryption Strength) vulnerabilities

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CVE-2014-9199 — Critical (CVSS 10.0): The Clorius Controls Java web client before 01.00.0009g allows remote attackers to discover credentials by sniffing the…
CVE-2018-25272 — Critical (CVSS 9.8): ELBA5 5.8.0 contains a remote code execution vulnerability that allows attackers to obtain database credentials and…
CVE-2025-12478 — Critical (CVSS 9.8): Non-Compliant TLS Configuration.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .
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Browse all CWE-326 (Inadequate Encryption Strength) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

111.70.9.143 (ipv4-addr)
102.53.15.18 (ipv4-addr)
102.53.15.17 (ipv4-addr)
111.70.32.11 (ipv4-addr)
58.221.244.34 (ipv4-addr)
111.70.32.10 (ipv4-addr)
110.25.109.53 (ipv4-addr)
76.133.97.153 (ipv4-addr)