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Vulnerability record · CVE-2019-10655 · published 30 March 2019

CVE-2019-10655: Grandstream gac2500 firmware os command injection vulnerability

Grandstream · Gac2500 Firmware

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.

9.8 CVSS 3.1 Critical EPSS 15% · top 3.3% CWE-78 · OS command injectionCWE-119 · Memory buffer overflow
9.8CVSS 3.1 base score, v2 7.5
15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
8References, 6 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2019-10655), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.