CVE-2018-2386
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedUnder certain conditions a malicious user provoking an out of bounds buffer overflow can prevent legitimate users from accessing the SAP Internet Graphics Server (IGS), 7.20, 7.20EXT, 7.45, 7.49, 7.53.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceSAP Internet Graphics Server (IGS) versions 7.20, 7.20EXT, 7.45, 7.49, and 7.53 contain an out of bounds buffer overflow vulnerability that can be triggered by a malicious user under certain conditions. The vulnerability leads to denial of service by preventing legitimate users from accessing the IGS service.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 7.20= 7.20ext= 7.45= 7.49= 7.53CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm SAP IGS is installedCheck if SAP Internet Graphics Server components are present on the system. In SAP systems, use transaction code SM51 to list running SAP instances and check if IGS processes are active. Alternatively, search for IGS-related processes or services running on the host.Affected if SAP IGS is installed and running on the system
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Identify the IGS versionUse SAP transaction code SM51 to view release and patch information, or use transaction code IGS_VERSION if available. The version number will be displayed (e.g., 7.20, 7.45, 7.49, or 7.53).Affected if The installed version matches 7.20, 7.20EXT, 7.45, 7.49, or 7.53 exactly
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Verify IGS is network-accessibleCheck if the IGS service is listening on network ports or exposed to network requests. Review SAP gateway configuration and firewall rules. IGS typically communicates over HTTP/HTTPS ports configured in the SAP system.Affected if IGS is exposed to network access where a remote malicious user could send requests
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Review IGS access logs for anomaliesExamine SAP IGS logs and system traces for unusually high request volumes or malformed requests that could indicate exploitation attempts. Look for patterns consistent with buffer overflow triggers.Affected if Logs show unusual request patterns or evidence of DoS attempts against IGS
You are affected if SAP Internet Graphics Server is running and its version is exactly 7.20, 7.20EXT, 7.45, 7.49, or 7.53, and the service is network-accessible to potential attackers.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the relevant SAP security patch for CVE-2018-2386 to all affected IGS installations. Consider network segmentation to limit exposure and implement monitoring for unusual IGS request patterns.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2386 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-2386 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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