CVE-2021-30128 [Critical] | Security Vulnerability in Ofbiz

CVE-2021-30128 is rated High Risk (73.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 93.16%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-28	94.02%	93.16%	-0.86%
2	2026-03-28	94.07%	94.02%	-0.04%
3	2026-03-18	—	94.07%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-28

94.02%

93.16%

-0.86%

2026-03-28

94.07%

94.02%

-0.04%

2026-03-18

—

94.07%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
10.0	2.0	HIGH	`AV:N/AC:L/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	10.0	10.0	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

[email protected]

10.0

2.0

HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:C): Complete confidentiality impact.
Integrity impact (I:C): Complete integrity impact.
Availability impact (A:C): Complete availability impact.

10.0

[email protected]

Affected software / configurations for CVE-2021-30128

Vendor	Product	Version	Raw CPE
apache	ofbiz	< 17.12.07	cpe:2.3:a:apache:ofbiz::::::::

URL	Tags
http://www.openwall.com/lists/oss-security/2021/04/27/5	Mailing List Patch Third Party Advisory
https://lists.apache.org/thread.html/r078351a876ed284ba667b33aba29428d7308a5bd4df78f14a3df6661%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r108a964764b8bd21ebd32ccd4f51c183ee80a251c105b849154a8e9d%40%3Ccommits.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rab718cfe6468085d7560c0c1ae816841e175886199f42e36efb8d735%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rb3f5cd65f3ddce9b9eb4d6ea6e2919933f0f89b15953769d11003743%40%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/rb3f5cd65f3ddce9b9eb4d6ea6e2919933f0f89b15953769d11003743%40%3Cdev.ofbiz.apache.org%3E	Mailing List Mitigation Vendor Advisory
https://lists.apache.org/thread.html/rb3f5cd65f3ddce9b9eb4d6ea6e2919933f0f89b15953769d11003743%40%3Cuser.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rb82f41de3c44bb644632531f79649046ca76afeab25a2bdb9991ab84%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rbe512e5ccd6b11169c6379daa1234bc805f3d53c5a38224e956295ce%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rbe8439b26a71fc3b429aa793c65dcc4a6e349bc7bb5010746a74fa1d%40%3Ccommits.ofbiz.apache.org%3E

URL

CVE-2021-30128 | Unsafe deserialization in Apache OFBiz

Exploit prediction scoring system (EPSS) score for CVE-2021-30128

Common vulnerability scoring system (CVSS) metrics for CVE-2021-30128

Weakness enumeration for CVE-2021-30128

Affected software / configurations for CVE-2021-30128

References for CVE-2021-30128