CVE-2026-27688: Due to a missing authorization check in SAP NetWeaver Application Server for ABAP, an authenticated attacker w

Routine

MEDIUM 5.0DOWNGRADE

CVE-2026-27688 is a medium-severity flaw (CVSS 5.0) affecting netweaver application server abap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Due to a missing authorization check in SAP NetWeaver Application Server for ABAP, an authenticated attacker with user privileges could read Database Analyzer Log Files via a specific RFC function module. The attacker with the necessary privileges to execute this function module could potentially escalate their privileges and read the sensitive data, resulting in a limited impact on the confidentiality of the information stored. However, the inte

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-03-10
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

2026-03-10 17:38 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

sap netweaver application server abap DOWNGRADE

Affected: 700 · 701 · 702 · 730 · 731 · 740 · 750 · 751

Fixed in: no fixed release known

Safe to downgrade to: a release before 700

1. Check installed version

apt-cache policy netweaver-application-server-abap || rpm -q netweaver-application-server-abap || netweaver-application-server-abap --version

2. No fixed release: DOWNGRADE to a release before 700 (Debian / Ubuntu)

apt-cache madison netweaver-application-server-abap sudo apt install netweaver-application-server-abap=<VERSION_BEFORE_700> sudo apt-mark hold netweaver-application-server-abap

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

dnf --showduplicates list netweaver-application-server-abap sudo dnf downgrade netweaver-application-server-abap-<VERSION_BEFORE_700> sudo dnf versionlock add netweaver-application-server-abap

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-2026-27688?

netweaver application server abap: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-27688 being exploited?

CVE-2026-27688 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-2026-27688 affect?

CVE-2026-27688 affects netweaver application server abap. Severity is medium (CVSS 5.0). Due to a missing authorization check in SAP NetWeaver Application Server for ABAP, an authenticated attacker with user privileges could read Database Analyzer Log Files via a specific RFC function module. The attacker with the necessary pri

How urgent is CVE-2026-27688?

Priority 21/100. No elevated risk signals yet.

Software pages

SAP vulnerabilities

Related CVEs

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References

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