CVE-2021-27438
No exploitation reported by the sources we read.
- Published2021-03-25
- Fixed in02a04.1
- WeaknessCWE-798 · CWE-94
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The software contains a hard-coded password it uses for its own inbound authentication or for outbound communication to external components on the Reason DR60 (all firmware versions prior to 02A04.1).
Timeline
dates in UTC- 2021-03-2520:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-27438?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27438?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2.x | < 02a04.1 | 02a04.1 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
GE Reason DR60
DR60: all versions prior to 02A04.1
Fix
- Update Ge reason dr60 firmware to 02a04.1
- Vendor fix CISA ICSA-21-082-03 · 1 productGE recommends DR60 users upgrade to firmware v02A04.1 or higher to correct these vulnerabilities.
- Vendor fix CISA ICSA-21-082-03 · 1 productInstructions on how to upgrade the DR60 firmware and verify its installation are available in the product user's manual.
- Vendor fix CISA ICSA-21-082-03 · 1 productGE recommends DR60 devices be protected using network defense-in-depth practices. This includes, but is not limited to, placing DR60 devices inside the control system network security perimeter, and having access controls, monitoring (such as an Intrusion Detection System), and other mitigating tec…
- Mitigation from the vendor CISA ICSA-21-082-03 · 1 productSee GE publication number: GES-2021-002 for more information.
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.18.8read 2026-10-23
- NVDCVSS 2.06.5read 2026-10-23
- CNAweakness (CWE)CWE-94read 2026-10-23
- NVDweakness (CWE)CWE-798, CWE-94read 2026-10-23
- FIRST EPSSEPSS score1.3 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2021-03-25
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-27438?
Is CVE-2021-27438 actively exploited?
What is the CVSS score for CVE-2021-27438?
Running GE Reason DR60? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.