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CVE-2019-17564· NVD / CVE Program· CNA apache

Unsafe deserialization occurs within a Dubbo application which has HTTP remoting enabled.

Noroxi assessment

Priority: Plan (action score 50/100)

  • A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 36.5% (FIRST EPSS); higher than 98.4% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: org.apache.dubbo:dubbo-rpc-http-invoker (Maven) 2.7.5.

Add it to your regular patch cycle. Upgrade to org.apache.dubbo:dubbo-rpc-http-invoker (Maven) 2.7.5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Unsafe deserialization occurs within a Dubbo application which has HTTP remoting enabled. An attacker may submit a POST request with a Java object in it to completely compromise a Provider instance of Apache Dubbo, if this instance enables HTTP. This issue affected Apache Dubbo 2.7.0 to 2.7.4, 2.6.0 to 2.6.7, and all 2.5.x versions.

CriticalCVSS 9.8 · v3.1—Proof of concept Fix available
Published
Apr 1, 2020
Updated
Jun 16, 2026
EPSS
36.5% · 98th percentile

Report tools

JSON

Action score

50

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
11 / 30 · 36.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
apachedubbo

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apache dubbo2.5.0 and later · up to 2.5.10 inclusive
  • apache dubbo2.6.0 and later · up to 2.6.7 inclusive
  • apache dubbo2.7.0 and later · up to 2.7.4 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

  • Apache Apache Dubbo

    • 2.7.0 to 2.7.4, 2.6.0 to 2.6.7, all 2.5.x versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenorg.apache.dubbo:dubbo-rpc-http-invokerfrom 2.5.0 · before 2.7.52.7.5

Same product

apache: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-30181Apache Dubbo RCE on customers via Script route poisoning (Nashorn script injection)
    57Plan
  • CVE-2021-30180Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)
    57Plan
  • CVE-2021-25641Dubbo Zookeeper does not check serialization id
    45Plan
  • CVE-2021-43297Dubbo Hessian cause RCE when parse error
    44Plan
  • CVE-2020-1948This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower.
    44Plan
  • CVE-2023-29234Bypass serialize checks in Apache Dubbo
    41Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:org.apache.dubbo:dubbo-rpc-http-invoker2.7.5Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×7

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2019-17564 —
Proof-of-concept repository on GitHubstars:02020-02-12
Proof-of-concept repository on GitHubstars:22020-02-13
Proof-of-concept repository on GitHubstars:12020-02-14
Proof-of-concept repository on GitHubstars:02020-02-17
Proof-of-concept repository on GitHubstars:162020-02-20
Proof-of-concept repository on GitHubstars:82020-02-24
Proof-of-concept repository on GitHubstars:02026-10-08

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-50 d
  2. Published
  3. TodayOct 14, 2026+2387 d
EPSS, last 120 days+1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-502 · Deserialization of Untrusted Data

CVSS vector

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

nvd-primary

Root cause

Data received over the network is deserialized into the language’s native object format without verifying its source. Code paths inside the object can be triggered during deserialization.

The bug in code

The whole CWE-502 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

python
payload = sock.recv(65536)job = pickle.loads(payload)

Fixed

python
payload = sock.recv(65536)if not hmac.compare_digest(sign(payload), header_sig):    raise PermissionError("invalid signature")job = JobSchema.validate(json.loads(payload))

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records