CVE-2008-2420

mediumpriority · track · 27EPSS 0.014 · 72 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.36% (72nd) EPSS

CVSS 6.8 · medium

Is it mine?

56 products

Check your exposure

Who says so?

3 sources

enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.

cvss

Technical severity, 0–10. One row per scoring source.

6.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USprimaryCWE-264US

affected products (56)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Gentoo Foundation Inc. Gentoo Linux≤ 10.0fstec_bduRU
stunnel stunnel= 3.10nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.11nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.12nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.13nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.14nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.15nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.16nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.17nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.18nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.19nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.20nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.21nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.21anvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.21bnvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.21cnvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.22nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.23nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*
stunnel stunnel= 3.24nvdUScpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:*

showing 20 of 56

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2008-05-23modified 2026-06-16

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+8950 more

references (24)

External citations — patches, advisories, analysis.

scry

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