CVE-2020-1948
Deserialization of Untrusted Data in Apache Dubbo
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
- Record
CVE-2020-1948- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List No score
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
- Record
CVE-2020-1948- Updated
- 2026-11-02
EUVDEUVD-2022-1230 No score
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
- Record
EUVD-2022-1230- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-whww-v56c-cgv2
Deserialization of Untrusted Data in Apache Dubbo
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
- Record
GHSA-whww-v56c-cgv2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
OSV
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
- Record
CVE-2020-1948- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-whww-v56c-cgv2
Deserialization of Untrusted Data in Apache Dubbo
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
- Record
GHSA-whww-v56c-cgv2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.dubbo:dubboMaven |
before 2.7.7 | 2.7.7 |
org.apache.dubbo:dubbo-commonMaven |
before 2.7.7 | 2.7.7 |
org.apache.dubbo:dubboMaven |
before 2.7.7, plus listed versions 2.7.02.7.12.7.22.7.32.7.42.7.4.12.7.52.7.6 |
2.7.7 |
org.apache.dubbo:dubbo-commonMaven |
before 2.7.7, plus listed versions 2.7.02.7.12.7.22.7.32.7.42.7.4.12.7.52.7.6 |
2.7.7 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | M3g4Byt3/cve-2020-1948-poc | 2020-07-09 |
| PoC in GitHub | ctlyz123/CVE-2020-1948 | 2020-06-27 |
| PoC in GitHub | keloke/Dubbo-deserialization | 2020-08-11 |
| PoC in GitHub | txrw/Dubbo-CVE-2020-1948 | 2020-07-04 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-1948 is a critical vulnerability (CVSS 9.8) in Apache Dubbo, published July 14, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 16.4%, the 97th percentile. Fixed in org.apache.dubbo:dubbo 2.7.7.