CVE-2020-11698: An issue was discovered in Titan SpamTitan 7.07

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-11698 is a critical-severity flaw (CVSS 9.8) affecting spamtitan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Titan SpamTitan 7.07. Improper input sanitization of the parameter community on the page snmp-x.php would allow a remote attacker to inject commands into the file snmpd.conf that would allow executing commands on the target server.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	73.2% (top 1%)
CISA exploited list	No
Weakness	CWE-77
Published	2020-09-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: titanhq

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-09-17 17:15 UTCPublished CVE record published
2026-06-17 02:50 UTCUpdated Record last modified

titanhq spamtitan DOWNGRADE

Affected: 7.07

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.07

1. Check installed version

apt-cache policy spamtitan || rpm -q spamtitan || spamtitan --version

2. No fixed release: DOWNGRADE to a release before 7.07 (Debian / Ubuntu)

apt-cache madison spamtitan sudo apt install spamtitan=<VERSION_BEFORE_7.07> sudo apt-mark hold spamtitan

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spamtitan sudo dnf downgrade spamtitan-<VERSION_BEFORE_7.07> sudo dnf versionlock add spamtitan

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · lis · FIXED · 2.1.21-2.fc46 · FEDORA-2026-039245acc6 · source

sudo dnf upgrade --advisory=FEDORA-2026-039245acc6

Fedora ELN · bitcoin-core · FIXED · 32.1-2.eln159 · FEDORA-2026-41e13beebe · source

sudo dnf upgrade --advisory=FEDORA-2026-41e13beebe

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: sensepost.com/blog/2020/clash-of-the-spamtitan/
Exploit-DB: SpamTitan 7.07 - Unauthenticated Remote Code Execution
Metasploit: SpamTitan Unauthenticated RCE

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-11698?

spamtitan: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-11698 being exploited?

CVE-2020-11698 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-11698 affect?

CVE-2020-11698 affects spamtitan. Severity is critical (CVSS 9.8). An issue was discovered in Titan SpamTitan 7.07. Improper input sanitization of the parameter community on the page snmp-x.php would allow a remote attacker to inject commands into the file snmpd.conf that would allow executing commands on

How urgent is CVE-2020-11698?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-35658 MEDIUM 5.3 UPGRADE SpamTitan before 7.09 allows attackers to tamper with backups, because backups are not encrypted.
CVE-2020-24046 HIGH 7.2 DOWNGRADE A sandbox escape issue was discovered in TitanHQ SpamTitan Gateway 7.07
CVE-2020-24045 HIGH 7.2 DOWNGRADE A sandbox escape issue was discovered in TitanHQ SpamTitan Gateway 7.07
CVE-2020-11804 HIGH 8.8 DOWNGRADE An issue was discovered in Titan SpamTitan 7.07
CVE-2020-11803 HIGH 8.8 DOWNGRADE An issue was discovered in Titan SpamTitan 7.07

References

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