Security readout for executives and security teams
Plain-English summary
This issue can let an unauthenticated network attacker crash SAP Internet Graphics Service after obtaining an existing system state value. The business impact is service disruption, not data theft or tampering, based on the CVE description.
Executive priority
Treat as a moderate availability risk for SAP environments. Prioritize remediation for business-critical SAP systems, internet-exposed services, or shared services where an IGS crash could affect operational workflows.
Technical view
SAP Internet Graphics Service versions 7.20, 7.20EXT, 7.53, 7.20_EX2, and 7.81 have insufficient input validation in CMiniXMLParser::Parse(). A malicious IGS request can trigger internal memory corruption and crash the service. CVSS is 5.9 with high attack complexity and availability-only impact.
Likely exposure
Exposure is most likely where SAP Internet Graphics Service is deployed and reachable over a network. The attack requires no privileges or user interaction, but the source states the attacker must first retrieve an existing system state value.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates network access, no authentication, no user interaction, high complexity, and high availability impact only.
Researcher notes
Evidence is limited to CVE metadata and SAP references. The vulnerability maps to CWE-787 and is described as parser input validation leading to memory corruption. No source indicates data disclosure, data modification, public exploitation, or detailed exploit prerequisites beyond the state value requirement.
Mitigation direction
- Review SAP Security Note 3021050 for vendor-approved fixes and implementation details.
- Patch or update affected SAP Internet Graphics Service deployments per SAP guidance.
- Prioritize systems where IGS is reachable from untrusted network segments.
- Use SAP support channels if fixed version applicability is unclear.
Validation and detection
- Inventory SAP Internet Graphics Service deployments and versions.
- Confirm whether versions 7.20, 7.20EXT, 7.53, 7.20_EX2, or 7.81 are present.
- Verify SAP Security Note 3021050 has been applied where applicable.
- Check whether IGS is network-accessible beyond trusted administrative or application paths.
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-2021-27626 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.