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CVE-2020-1948

36
FAUCET Score

CVE-2020-1948 is a critical deserialization vulnerability affecting Apache Dubbo versions 2.7.6 and earlier. An unauthenticated attacker can send specially crafted RPC requests with unrecognized service or method names, containing malicious parameter payloads. Successful exploitation allows for remote code execution with a CVSS score of 9.8 (Critical), indicating high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV) or public exploit code (Metasploit, ExploitDB), the vulnerability has garnered significant community discussion, suggesting awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.5.0, <= 2.5.10CPE matchmatch criteria
cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*
>= 2.6.0, <= 2.6.7CPE matchmatch criteria
cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*
>= 2.7.0, <= 2.7.6CPE matchmatch criteria
cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
13.84%
Probability of exploitation in next 30 days
EPSS Percentile
96.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1384 is in the 92nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.dubbo:dubboFixed in: 2.7.7
mavenpatch availablevia ghsa
Product: org.apache.dubbo:dubbo-commonFixed in: 2.7.7

Vendor Advisories (1)

mavenGHSA-whww-v56c-cgv2critical

Deserialization of Untrusted Data in Apache Dubbo

Feb 10, 2022

References

nsfocusglobal.com / apache-dubbo-remote-code-execution-vulnerability-cve-2020-1948-threat-alert
Third Party Advisory
lists.apache.org / thread.html/rbaa41711b3e7a8cd20e9013737423ddd079ddc12f90180f86e76523c%40%3Csecurity.dubbo.apache.org%3E
Broken Link