CVE-2021-21479 (GCVE-0-2021-21479)

Vulnerability from cvelistv5 – Published: 2021-02-09 20:49 – Updated: 2024-08-03 18:16
VLAI Shadowserver KEVIntel
Summary
In SCIMono before 0.0.19, it is possible for an attacker to inject and execute java expression compromising the availability and integrity of the system.
Severity
8.1 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
CWE
  • Remote Code Execution
Assigner
sap
References
Impacted products
Vendor Product Version
SAP SE SCIMono Affected: < 0.0.19
Create a notification for this product.
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 28806526-f643-4aeb-a8b9-72e0225cad7f

Vulnerability ID: CVE-2021-21479

Status: Confirmed

Status Updated: 2026-07-22 00:00 UTC

Exploited: Yes

Characteristics
Severity: 91.0
Timestamps
First Seen: 2023-10-14
Asserted: 2023-10-14
Last Seen: 2026-07-22
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: SAP / SCIMono | Class: other-software | Severity: Critical (CVSS 9.1) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-07-22: 9
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor SAP
30D Avg 0
90D Avg 2
Product SCIMono
Cisa Kev no
Connections 9
Observation Date 2026-07-22
Vulnerability Class CVSS
Vulnerability Score 9.1
Vulnerability Severity Critical
References
Created: 2026-07-01 07:17 UTC | Updated: 2026-07-24 01:01 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5815f94d-336b-4531-8485-efd51414b7c4

Vulnerability ID: CVE-2021-21479

Status: Confirmed

Status Updated: 2025-07-27 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-07-27
Asserted: 2025-07-27
Scope
Notes: KEVIntel entry: In SCIMono before 0.0.19, it is possible for an attacker to inject and execute java expression compromising the availability and integrity of the... | Affected: SAP SE / SCIMono | CVSS: 8.1 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title In SCIMono before 0.0.19, it is possible for an attacker to inject and execute java expression compromising the availability and integrity of the...
Vendor SAP SE
Product SCIMono
Added Date 2025-07-27T00:00:00.000Z
Cvss Score 8.1
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-23 11:12 UTC | Updated: 2026-06-23 11:12 UTC
Show details on NVD website
To clipboard 

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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.


Detection rules are retrieved from Rulezet.