NULL pointer dereference in SAP Netweaver As Abap
CVE-2021-27607
SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher), versions - KRNL32NUC - 7.22,7.22EXT, KRNL32UC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method ThSncIn() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- SAP Netweaver As Abap — versions kernel_7.22, kernel_7.49, kernel_7.53
- SAP Se Netweaver Abap Server And Platform (Dispatcher) — versions < KRNL32NUC - 7.22, < 7.22EXT, < KRNL32UC - 7.22
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wiki.scn.sap.com/wiki/pages/viewpage.action (Broken Link, Vendor Advisory)
- launchpad.support.sap.com/ (Permissions Required, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27607?
- CVE-2021-27607 is a high-severity vulnerability in SAP Netweaver As Abap, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-06-09.
- How severe is CVE-2021-27607?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-27607 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.