How severe is CVE-2007-4995?

CVE-2007-4995 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-4995 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4995?

CVE-2007-4995 primarily affects Openssl. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4995?

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-2007-4995 published?

CVE-2007-4995 was published on 2007-10-13 and last updated on 2026-06-16.

CVE-2007-4995

CVE-2007-4995 is a critical-severity vulnerability in Openssl with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Openssl
Published: 2007-10-13
Last modified: 2026-06-16

Description

Off-by-one error in the DTLS implementation in OpenSSL 0.9.8 before 0.9.8f allows remote attackers to execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2007-4995?: Off-by-one error in the DTLS implementation in OpenSSL 0.9.8 before 0.9.8f allows remote attackers to execute arbitrary code via unspecified vectors.
How severe is CVE-2007-4995?: CVE-2007-4995 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-4995 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4995?: CVE-2007-4995 primarily affects Openssl. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4995?: 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-2007-4995 published?: CVE-2007-4995 was published on 2007-10-13 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:openssl:openssl:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8d:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8e:*:*:*:*:*:*:*

More vulnerabilities in Openssl

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Other CWE-189 (Numeric Errors) vulnerabilities

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CVE-2015-6575 — Critical (CVSS 10.0): SampleTable.cpp in libstagefright in Android before 5.1.1 LMY48I does not properly consider integer promotion, which…
CVE-2015-3864 — Critical (CVSS 10.0): Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in…
CVE-2015-3836 — Critical (CVSS 10.0): The Parse_wave function in arm-wt-22k/lib_src/eas_mdls.c in the Sonivox DLS-to-EAS converter in Android before 5.1.1…
CVE-2015-3834 — Critical (CVSS 10.0): Multiple integer overflows in the BnHDCP::onTransact function in media/libmedia/IHDCP.cpp in libstagefright in Android…

Browse all CWE-189 (Numeric Errors) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

222.99.52.202 (ipv4-addr)
171.100.156.38 (ipv4-addr)