CVE-2020-5722The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An…
- 9.8CriticalCVSS base score
- 84.3%Exploitation in 30 daysEPSS · top 0.3% of all CVEs
- YesKnown exploitedin CISA's KEV since 28 Jan 2022
- 3Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Grandstream Networks UCM6200 Series SQL Injection Vulnerability.
- Added
- 28 Jan 2022
- Fix due (US federal)
- 28 Jul 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 28 Jan 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module, a Nuclei template and an Exploit-DB entry for it. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits3
Metasploit modules1 module
- Grandstream UCM62xx IP PBX sendPasswordEmail RCE (Metasploit module) (opens in a new tab)
exploit/linux/http/grandstream_ucm62xx_sendemail_rceRank excellentdisclosed 23 Mar 2020
Nuclei templates1 template
- Grandstream UCM6200 - SQL Injection (Nuclei template) (opens in a new tab)
http/cves/2020/CVE-2020-5722.yamlSeverity critical
Exploit-DB1 entry
- UCM6202 1.0.18.13 - Remote Command Injection (Exploit-DB entry) (opens in a new tab)
EDB-ID 48247webapps, hardwarepublished 24 Mar 2020Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By tenable
- 3 months later
· 3 months later
Published
- 23 months later
· 23 months later
Added to CISA KEV
Known exploited in the wild
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 84.3% · top 0.3% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
Grandstream UCM6200 Series
- affected Before 1.0.20.17
References
References4
- https://www.tenable.com/security/research/tra-2020-15 (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/156876/UCM6202-1.0.18.13-Remote-Command-Injection.html (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/165708/Grandstream-UCM62xx-IP-PBX-sendPasswordEmail-Remote-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5722 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-26881 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-5722)Record last updated .