NULL pointer dereference in PHP

CVE-2018-19935

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.063 (93.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-19935: held from 0.063 to 0.063.

EPSS over last 30 days · oldest: 0.063 · newest: 0.063 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-19935?
CVE-2018-19935 is a high-severity vulnerability in PHP, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2018-12-07.
How severe is CVE-2018-19935?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-19935 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.