CVE-2010-4699

medium
Published 2011-01-18 ยท Modified 2026-04-29
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
5.0

Description

The iconv_mime_decode_headers function in the Iconv extension in PHP before 5.3.4 does not properly handle encodings that are unrecognized by the iconv and mbstring (aka Multibyte String) implementations, which allows remote attackers to trigger an incomplete output array, and possibly bypass spam detection or have unspecified other impact, via a crafted Subject header in an e-mail message, as demonstrated by the ks_c_5601-1987 character set.

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

VendorProductVersionsFixed
php phpphp{"endIncluding":"5.3.3"}
php phpphp1.0
php phpphp2.0
php phpphp2.0b10
php phpphp3.0
php phpphp3.0.1
php phpphp3.0.2
php phpphp3.0.3
php phpphp3.0.4
php phpphp3.0.5
php phpphp3.0.6
php phpphp3.0.7
php phpphp3.0.8
php phpphp3.0.9
php phpphp3.0.10
php phpphp3.0.11
php phpphp3.0.12
php phpphp3.0.13
php phpphp3.0.14
php phpphp3.0.15
php phpphp3.0.16
php phpphp3.0.17
php phpphp3.0.18
php phpphp4.0
php phpphp4.0.0
php phpphp4.0.1
php phpphp4.0.2
php phpphp4.0.3
php phpphp4.0.4
php phpphp4.0.5
php phpphp4.0.6
php phpphp4.0.7
php phpphp4.1.0
php phpphp4.1.1
php phpphp4.1.2
php phpphp4.2.0
php phpphp4.2.1
php phpphp4.2.2
php phpphp4.2.3
php phpphp4.3.0
php phpphp4.3.1
php phpphp4.3.2
php phpphp4.3.3
php phpphp4.3.4
php phpphp4.3.5
php phpphp4.3.6
php phpphp4.3.7
php phpphp4.3.8
php phpphp4.3.9
php phpphp4.3.10
php phpphp4.3.11
php phpphp4.4.0
php phpphp4.4.1
php phpphp4.4.2
php phpphp4.4.3
php phpphp4.4.4
php phpphp4.4.5
php phpphp4.4.6
php phpphp4.4.7
php phpphp4.4.8
php phpphp4.4.9
php phpphp5.0.0
php phpphp5.0.1
php phpphp5.0.2
php phpphp5.0.3
php phpphp5.0.4
php phpphp5.0.5
php phpphp5.1.0
php phpphp5.1.1
php phpphp5.1.2
php phpphp5.1.3
php phpphp5.1.4
php phpphp5.1.5
php phpphp5.1.6
php phpphp5.2.0
php phpphp5.2.1
php phpphp5.2.2
php phpphp5.2.3
php phpphp5.2.4
php phpphp5.2.5
php phpphp5.2.6
php phpphp5.2.7
php phpphp5.2.8
php phpphp5.2.9
php phpphp5.2.10
php phpphp5.2.11
php phpphp5.2.12
php phpphp5.2.13
php phpphp5.2.14
php phpphp5.2.15
php phpphp5.2.16
php phpphp5.2.17
php phpphp5.3.0
php phpphp5.3.1
php phpphp5.3.2

References

CWEs

CWE-189

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.