CVE-2021-31195 (GCVE-0-2021-31195)
Vulnerability from cvelistv5 – Published: 2021-05-11 19:11 – Updated: 2025-02-28 19:57
VLAI
EPSS
VEX
Title
Microsoft Exchange Server Remote Code Execution Vulnerability
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-28 19:25 UTC
CWE
- Spoofing
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-… | x_refsource_MISC |
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 19 |
Affected:
15.01.0 , < 15.01.2176.014
(custom)
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:* |
||
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 8 |
Affected:
15.02.0 , < 15.02.0792.015
(custom)
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:* |
||
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 |
Affected:
15.02.0 , < 15.02.0858.012
(custom)
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* |
||
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 20 |
Affected:
15.01.0 , < 15.01.2242.010
(custom)
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:* |
||
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 |
Affected:
15.00.0 , < 15.00.1497.018
(custom)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* |
Date Public
2021-05-11 07:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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