Security readout for executives and security teams
Plain-English summary
This vulnerability can let an unauthenticated network attacker crash SAP Internet Graphics Service after obtaining an existing system state value. The stated impact is availability loss only: sources say system data cannot be viewed or modified. Business urgency depends on whether SAP IGS is reachable from untrusted networks.
Executive priority
Treat as a targeted availability risk for SAP-dependent business processes. It is not described as data compromise, but an outage of SAP graphics services may disrupt dependent workflows. Prioritize exposed or mission-critical SAP environments and verify SAP Note remediation status.
Technical view
CVE-2021-27622 affects SAP Internet Graphics Service versions 7.20, 7.20EXT, 7.53, 7.20_EX2, and 7.81. Insufficient input validation in CDrawRaster::LoadImageFromMemory() can trigger internal memory corruption and crash the service. CVSS 3.0 is 5.9 with network attack vector, high complexity, no privileges, and high availability impact.
Likely exposure
Exposure is most likely in SAP environments running the listed SAP IGS versions where the service accepts network requests. Risk increases if IGS is internet-facing or reachable from broad internal networks. The source bundle does not identify specific default ports, deployment patterns, or cloud products.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source states active exploitation. Exploitation requires retrieving an existing system state value first, reflected by high attack complexity. The known impact is denial of service, not data theft or modification.
Researcher notes
The root issue is CWE-787-style memory corruption reachable through a malicious IGS request after obtaining a system state value. Evidence supports denial of service only. Public details in the bundle are limited; avoid assuming remote code execution, data access, or a specific patch level beyond SAP Note 3021050 guidance.
Mitigation direction
- Review SAP Note 3021050 and apply SAP vendor guidance for affected IGS versions.
- Restrict network access to SAP IGS to trusted administrative and application paths only.
- Prioritize remediation for internet-facing or broadly reachable SAP IGS instances.
- Monitor SAP IGS availability and crash events until vendor remediation is confirmed.
Validation and detection
- Inventory SAP Internet Graphics Service deployments and record exact versions.
- Check whether deployed versions match 7.20, 7.20EXT, 7.53, 7.20_EX2, or 7.81.
- Confirm SAP Note 3021050 status in SAP support tooling.
- Review network exposure for IGS from internet, user networks, and partner connections.
- Look for unexplained IGS crashes or availability incidents around published timelines.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-27622 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.9MediumVector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999CVE reference
- https://launchpad.support.sap.com/#/notes/3021050CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.