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

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HIGH 7.5REMOTEDOWNGRADE

CVE-2020-37104 is a high-severity flaw (CVSS 7.5) 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 an information disclosure vulnerability that allows unauthenticated attackers to download database backup files by predicting backup filename patterns. Attackers can generate a list of 6-digit PIN combinations and fuzz the backup download URL to exfiltrate sensitive database information from the /database_backup/ directory.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-538
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 03:16 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.

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-2020-37104?

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

Is CVE-2020-37104 being exploited?

CVE-2020-37104 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-2020-37104 affect?

CVE-2020-37104 affects astpp. Severity is high (CVSS 7.5). ASTPP 4.0.1 contains an information disclosure vulnerability that allows unauthenticated attackers to download database backup files by predicting backup filename patterns. Attackers can generate a list of 6-digit PIN combinations and fuzz

How urgent is CVE-2020-37104?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-37153 CRITICAL 9.8 DOWNGRADE ASTPP 4.0.1 contains multiple vulnerabilities including cross-site scripting and command injection in SIP devi

References

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