CVE-2018-19935

HIGHNVD 7.57.5—Elevated

7.5

ext/imap/php_imap.c in PHP 5.x and 7.x before 7.3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty string in the message argument to the imap_mail function.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 96.1%
KEV: Not listed

Published

December 7, 2018

Last Modified

November 21, 2024

References (14)

cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
cve@mitrehttp://www.securityfocus.com/bid/106143
cve@mitrehttps://bugs.php.net/bug.php?id=77020
cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/12/msg00006.html
cve@mitrehttps://security.netapp.com/advisory/ntap-20181221-0003/
cve@mitrehttps://www.debian.org/security/2018/dsa-4353
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/106143
af854a3a-2127-422b-91ae-364da2661108https://bugs.php.net/bug.php?id=77020
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20181221-0003/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4353

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 10× in last 7d / 15× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 00:30 UTCEG score recompute
2026-05-28 00:30 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 10:43 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-19935?

CVE-2018-19935 is a high vulnerability published on December 7, 2018. ext/imap/phpimap.c in PHP 5.x and 7.x before 7.3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty string in the message argument to the imapmail function.

When was CVE-2018-19935 disclosed?

CVE-2018-19935 was first published in the National Vulnerability Database on December 7, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-19935 actively exploited?

CVE-2018-19935 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-19935?

CVE-2018-19935 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-19935?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-19935, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-19935

📅 Published

🔄 Last Modified

🔗 References (14)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-19935?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (14)

Frequently asked(5)

Related CVEs(same CWE)