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TI-2026-71480 Aliases CVE-2026-58249GHSA-f9wm-r4w7-hw29

Integer underflow in SAP NetWeaver and SAP Web Dispatcher

Priority LOW 39CWE-191Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-191 and the CVSS impact.

Summary

The listed affected ranges of SAP NetWeaver and SAP Web Dispatcher (Internet Communication Manager) start at HDB 2.00, KRNL64UC 7.53, WEBDISP 7.53, 7.54, 7.77, 7.93, 9.16, XS_ADVANCED_RUNTIME 1.00, SAP_EXTENDED_APP_SERVICES 1, CONTSERV 7.53, KERNEL 7.53, 9.18, 9.19 and 9.20. The product does not properly validate certain fields in specially crafted requests handled by an internal protocol component, which leads to an integer underflow (CWE-191). An unauthenticated remote attacker can send a malicious request that causes the affected process to crash. The impact is high on availability, with no effect on confidentiality or integrity.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

SAP NetWeaver and SAP Web Dispatcher do not properly validate certain fields in specially crafted requests handled by an internal protocol component. An unauthenticated attacker could send a malicious request that triggers a memory-handling error, causing the affected process to crash. Successful exploitation can therefore result in a high impact on the availability of the affected application. There is no impact on the confidentiality or integrity of the application.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00406 35th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SAPSAP NetWeaver and SAP Web Dispatcher (Internet Communication Manager)HDB 2.00; KRNL64UC 7.53; WEBDISP 7.53; 7.54; 7.77; 7.93; 9.16; XS_ADVANCED_RUNTIME 1.00; SAP_EXTENDED_APP_SERVICES 1; CONTSERV 7.53; KERNEL 7.53; 9.18; 9.19; 9.20—No fix listedCNA
  • SAP NetWeaver and SAP Web Dispatcher (Internet Communication Manager) VendorSAP Affected HDB 2.00; KRNL64UC 7.53; WEBDISP 7.53; 7.54; 7.77; 7.93; 9.16; XS_ADVANCED_RUNTIME 1.00; SAP_EXTENDED_APP_SERVICES 1; CONTSERV 7.53; KERNEL 7.53; 9.18; 9.19; 9.20 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for SAP NetWeaver and SAP Web Dispatcher (Internet Communication Manager).

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-58249
  2. 2026-10-13 Alias added: GHSA-f9wm-r4w7-hw29
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: MEDIUM → LOW

References

Other 2

  • TI-2025-22522 Missing Authorization check in SAP NetWeaver (Visual Composer development server) KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-06811 SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP… KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-15842 Path traversal in SAP NetWeaver KEVCVSS 3.1CRITICAL 9.9
  • TI-2020-05139 Missing authentication in SAP NetWeaver AS JAVA KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-05063 Missing authentication in SAP Solution Manager KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-00284 Deserialization of untrusted data in SAP Commerce Cloud KEVCVSS 3.1CRITICAL 9.8
See all 1967 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences