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CVE-2019-11046

21
FAUCET Score

CVE-2019-11046 is a medium-severity vulnerability affecting PHP versions 7.2.x prior to 7.2.26, 7.3.x prior to 7.3.13, and 7.4.0, specifically within the bcmath extension. This flaw allows an attacker to trick bcmath functions into reading beyond allocated memory by providing non-ASCII numeric strings, potentially leading to memory content disclosure. The vulnerability has a CVSS score of 5.3, indicating a network-based attack with low complexity and no user interaction required, resulting in a low impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.2.0, <= 7.2.26CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.3.0, <= 7.3.13CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
7.4.0CPE matchmatch criteria
cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.7LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.08%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0408 is in the 86th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2019-11046Low

php: OOB read in bc_shift_addsub

Dec 16, 2019

References

lists.opensuse.org / opensuse-security-announce/2020-01/msg00036.html
Third Party Advisory
bugs.php.net / bug.php
Mailing ListPatchVendor Advisory
lists.debian.org / debian-lts-announce/2019/12/msg00034.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F
seclists.org / bugtraq/2020/Feb/27
Mailing ListThird Party Advisory
seclists.org / bugtraq/2020/Feb/31
Mailing ListThird Party Advisory
seclists.org / bugtraq/2021/Jan/3
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20200103-0002
Third Party Advisory
support.f5.com / csp/article/K48866433
usn.ubuntu.com / 4239-1
Third Party Advisory
debian.org / security/2020/dsa-4626
Third Party Advisory
debian.org / security/2020/dsa-4628
Third Party Advisory
tenable.com / security/tns-2021-14
Third Party Advisory