CVE-2018-19935

Name: CVE-2018-19935
Creator: NVD / NIST
Published: 2018-12-07T09:29:00.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 6.88%

Last modified Jun 17, 2026

CVE-2018-19935 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 6.88% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

6.88%

93.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Php	Php	>= 5.6.0, < 5.6.39
Php	Php	>= 7.0.0, < 7.0.33
Php	Php	>= 7.1.0, < 7.1.26
Php	Php	>= 7.2.0, < 7.2.14
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.htmlMailing List, Third Party Advisory
http://www.securityfocus.com/bid/106143Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=77020Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00006.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20181221-0003/Third Party Advisory
https://www.debian.org/security/2018/dsa-4353Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.htmlMailing List, Third Party Advisory
http://www.securityfocus.com/bid/106143Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=77020Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00006.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20181221-0003/Third Party Advisory
https://www.debian.org/security/2018/dsa-4353Third Party Advisory

Timeline

Published: Dec 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19935?

How severe is CVE-2018-19935?

CVE-2018-19935 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.88% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19935?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-19935?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST