CVE-2020-37153: ASTPP 4.0.1 contains multiple vulnerabilities including cross-site scripting and command injection in SIP devi

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-37153 is a critical-severity flaw (CVSS 9.8) affecting astpp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ASTPP 4.0.1 contains multiple vulnerabilities including cross-site scripting and command injection in SIP device configuration and plugin management interfaces. Attackers can exploit these flaws to inject system commands, hijack administrator sessions, and potentially execute arbitrary code with root permissions through cron task manipulation.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
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	5.0% (top 8%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-02-11
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: inextrix

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

Am I affected?

Timeline

2026-02-11 21:16 UTCPublished CVE record published
2026-06-17 03:17 UTCUpdated Record last modified

inextrix astpp DOWNGRADE

Affected: 4.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.0.1 (Debian / Ubuntu)

apt-cache madison astpp sudo apt install astpp=<VERSION_BEFORE_4.0.1> sudo apt-mark hold astpp

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

dnf --showduplicates list astpp sudo dnf downgrade astpp-<VERSION_BEFORE_4.0.1> sudo dnf versionlock add astpp

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 ELN · intel-ipsec-mb · FIXED · 3.0.1-1.eln159 · FEDORA-2026-ca01077210 · source

sudo dnf upgrade --advisory=FEDORA-2026-ca01077210

Fedora 46 · complytime-providers · FIXED · 0.3.0-2.fc46 · FEDORA-2026-7c372be466 · source

sudo dnf upgrade --advisory=FEDORA-2026-7c372be466

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: www.exploit-db.com/exploits/47889

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-2020-37153?

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

Is CVE-2020-37153 being exploited?

CVE-2020-37153 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-2020-37153 affect?

CVE-2020-37153 affects astpp. Severity is critical (CVSS 9.8). ASTPP 4.0.1 contains multiple vulnerabilities including cross-site scripting and command injection in SIP device configuration and plugin management interfaces. Attackers can exploit these flaws to inject system commands, hijack administrat

How urgent is CVE-2020-37153?

Priority 70/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-37104 HIGH 7.5 DOWNGRADE ASTPP 4.0.1 contains an information disclosure vulnerability that allows unauthenticated attackers to download

References

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