LiveActive security incident?Get immediate response
CVE Record

CVE-2003-1303: Buffer overflow in the imap_fetch_overview function in the IMAP functionality (php_imap.c) in PHP before 4....

Buffer overflow in the imap_fetch_overview function in the IMAP functionality (php_imap.c) in PHP before 4.3.3 allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long e-mail address in a (1) To or (2) From header.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2003-1303 is an old PHP IMAP vulnerability. A very long To or From email address can crash affected PHP IMAP handling and may allow code execution. The evidence identifies PHP before 4.3.3, but provides no CVSS score or current exploitation evidence. Exposure is most likely in legacy systems running PHP before 4.3.3 with IMAP functionality enabled and applications that process untrusted email headers. Modern supported PHP deployments should not be assumed affected from the provided evidence. Treat this as a legacy-risk issue. It is urgent if any production system still runs PHP before 4.3.3 with IMAP enabled, because the impact may extend beyond crashes. If no such systems exist, priority is documentation and evidence retention. Mitigation focus: Inventory PHP systems and identify any versions before 4.3.3.; Upgrade affected PHP installations using vendor-supported packages.; Disable PHP IMAP functionality where it is not required..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2003-1303 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.