Which products and versions are affected by CVE-2019-12987?

Affected: Netscaler SD-WAN (Citrix); SD-WAN (Citrix). The full list is in the CVE brief.

Is CVE-2019-12987 being exploited in the wild?

It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023.

Is CVE-2019-12987 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2019-12987?

No public exploit code is known.

Is there a fix for CVE-2019-12987?

Fixed versions are available, including Netscaler SD-WAN 10.0.8, SD-WAN 10.2.3.

How urgently should CVE-2019-12987 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Request A Demo

WatchlistCritical

CVE-2019-12987Netscaler SD-WAN OS Command Injection

Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 3 of 6).

Published Jul 16, 2019 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2019-12987 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Netscaler SD-WAN (Citrix), SD-WAN (Citrix).
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023. No public exploit code is known.
EPSS estimates a 43% probability of exploitation in the next 30 days.
Fixed versions are available, including Netscaler SD-WAN 10.0.8, SD-WAN 10.2.3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

43%

Higher than 98.6% of all scored CVEs

Exploit maturity

None known

ATLAS score

40/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Oct 14, 2023

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

None known

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisoryhttps://support.citrix.com/article/CTX251987
advisory109133

Description

Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 3 of 6).

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CIRCL KEV	Oct 14, 2023	n/a	Not reported
Industry KEV feed	Oct 14, 2023	n/a	Not reported

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Netscaler SD-WANCitrix	See advisory	10.0.8
SD-WANCitrix	See advisory	10.2.3

Patched Releases

Netscaler SD-WAN

10.0.8

SD-WAN

10.2.3

Timeline

Publicly disclosed
Jul 16, 2019
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Oct 14, 2023
Last updated
Nov 21, 2024

Weakness Type

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

8 more references in the full CVE brief

FAQ

Common Questions.

Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 3 of 6).
Affected: Netscaler SD-WAN (Citrix); SD-WAN (Citrix). The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Netscaler SD-WAN 10.0.8, SD-WAN 10.2.3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2019-12987 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.