CVE-2009-4355

mediumpriority · track · 23EPSS 0.092 · 95 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

9.18% (95th) EPSS

CVSS 5 · medium

Is it mine?

53 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to cause a denial of service (memory consumption) via vectors that trigger incorrect calls to the CRYPTO_cleanup_all_ex_data function, as demonstrated by use of SSLv3 and PHP with the Apache HTTP Server, a related issue to CVE-2008-1678.

cvss

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

5.0

010

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

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.04.3mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

affected products (53)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
openssl openssl≤ 0.9.8lnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.1cnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.2bnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.3nvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.3anvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.4nvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.5nvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.5anvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6nvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6anvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6bnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6cnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6dnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6envdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6fnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6gnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6hnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6invdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
openssl openssl= 0.9.6jnvdUScpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

showing 20 of 53

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2010-01-14modified 2026-06-16

related (3,726)

Related entries.

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+3721 more

references (60)

External citations — patches, advisories, analysis.

scry

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