CVE-2020-6259: Under certain conditions SAP Adaptive Server Enterprise, versions 15.7, 16.0, allows an attacker to access inf

Routine

MEDIUM 6.5DOWNGRADE

CVE-2020-6259 is a medium-severity flaw (CVSS 6.5) affecting adaptive server enterprise. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Under certain conditions SAP Adaptive Server Enterprise, versions 15.7, 16.0, allows an attacker to access information which would otherwise be restricted leading to Missing Authorization Check.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-862
Published	2020-05-12
Last modified	2026-06-17

Publisher (CNA): SAP SE · Vendor: sap

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

Am I affected?

Timeline

2020-05-12 18:15 UTCPublished CVE record published
2026-06-17 03:22 UTCUpdated Record last modified

sap adaptive server enterprise DOWNGRADE

Affected: 15.7 · 16.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.7

1. Check installed version

apt-cache policy adaptive-server-enterprise || rpm -q adaptive-server-enterprise || adaptive-server-enterprise --version

2. No fixed release: DOWNGRADE to a release before 15.7 (Debian / Ubuntu)

apt-cache madison adaptive-server-enterprise sudo apt install adaptive-server-enterprise=<VERSION_BEFORE_15.7> sudo apt-mark hold adaptive-server-enterprise

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

dnf --showduplicates list adaptive-server-enterprise sudo dnf downgrade adaptive-server-enterprise-<VERSION_BEFORE_15.7> sudo dnf versionlock add adaptive-server-enterprise

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-2020-6259?

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

Is CVE-2020-6259 being exploited?

CVE-2020-6259 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-2020-6259 affect?

CVE-2020-6259 affects adaptive server enterprise. Severity is medium (CVSS 6.5). Under certain conditions SAP Adaptive Server Enterprise, versions 15.7, 16.0, allows an attacker to access information which would otherwise be restricted leading to Missing Authorization Check.

How urgent is CVE-2020-6259?

Priority 37/100. No elevated risk signals yet.

Software pages

SAP vulnerabilities

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References

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