CVE-2019-10655

Name: CVE-2019-10655
Creator: NVD / NIST
Published: 2019-03-30T17:29:00.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 15.35%

Last modified Jun 17, 2026

CVE-2019-10655 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Grandstream GAC2500 1.0.3.35, GXP2200 1.0.3.27, GVC3202 1.0.3.51, GXV3275 before 1.0.3.219 Beta, and GXV3240 before 1.0.3.219 Beta devices allow unauthenticated remote code execution via shell metacharacters in a /manager?action=getlogcat priority field, in conjunction with a buffer overflow (via the phonecookie cookie) to overwrite a data structure and consequently bypass authentication. This can be exploited remotely or via CSRF because the cookie can be placed in an Accept HTTP header in an XMLHttpRequest call to lighttpd.. EPSS estimates a 15.35% chance of exploitation in the next 30 days.

Description

Grandstream GAC2500 1.0.3.35, GXP2200 1.0.3.27, GVC3202 1.0.3.51, GXV3275 before 1.0.3.219 Beta, and GXV3240 before 1.0.3.219 Beta devices allow unauthenticated remote code execution via shell metacharacters in a /manager?action=getlogcat priority field, in conjunction with a buffer overflow (via the phonecookie cookie) to overwrite a data structure and consequently bypass authentication. This can be exploited remotely or via CSRF because the cookie can be placed in an Accept HTTP header in an XMLHttpRequest call to lighttpd.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

15.35%

96.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Grandstream	Gac2500 Firmware	<= 1.0.3.35
Grandstream	Gvc3202 Firmware	< 1.0.3.51
Grandstream	Gxv3275 Firmware	< 1.0.3.219
Grandstream	Gxv3240 Firmware	< 1.0.3.219
Grandstream	Gxp2200 Firmware	<= 1.0.3.27

References

http://packetstormsecurity.com/files/165643/Grandstream-GXV3175-Unauthenticated-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/165931/Grandstream-GXV31XX-settimezone-Unauthenticated-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/scarvell/grandstream_exploitsExploit, Third Party Advisory
https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=23920&dl=1Third Party Advisory
http://packetstormsecurity.com/files/165643/Grandstream-GXV3175-Unauthenticated-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/165931/Grandstream-GXV31XX-settimezone-Unauthenticated-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/scarvell/grandstream_exploitsExploit, Third Party Advisory
https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=23920&dl=1Third Party Advisory

Timeline

Published: Mar 30, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-10655?

How severe is CVE-2019-10655?

CVE-2019-10655 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 15.35% probability of exploitation in the next 30 days.

How do I fix CVE-2019-10655?

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-2019-10655?

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

Scan your code now

Source: NVD / NIST