9.8

CVE-2019-16943: debian debian_linux Deserialization of Untrusted Data

Modified
AliasesUBUNTU-CVE-2019-16943DEBIAN-CVE-2019-16943CGA-22pj-p5r8-jfv5
Published 01-10-2019Last modified 07-10-2026

Vulnerability summary

CVE-2019-16943 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in debian debian_linux. EPSS estimates a 4.74% chance of exploitation in the next 30 days, higher than 91.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
4.74%
0%100%
Low · -0.16 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 1
DLA-1943-1DSA-4542-1MGASA-2021-0153RHSA-2020:0159RHSA-2020:0160RHSA-2020:0161

Timeline

  1. 01-10-2019
    PublishedVulnerability first disclosed.
  2. 07-10-2026
    Last modifiedVulnerability information updated.

Description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the p6spy (3.8.6) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of com.p6spy.engine.spy.P6DataSource mishandling.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

4.74%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

Decrease -0.16 pp

From 4.90% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard68 products
  • eco-java-gradle-2.10All versions (No fix recorded)
  • eco-java-gradle-2.11All versions (No fix recorded)
  • eco-java-gradle-2.12All versions (No fix recorded)
  • eco-java-gradle-2.13All versions (No fix recorded)
  • eco-java-gradle-2.14All versions (No fix recorded)
Oracle17 products
Netapp5 products
Debian2 products
Com.fasterxml.jackson.core1 product
  • jackson-databind≥ 2.9.0, < 2.9.10.1 | ≥ 2.7.0, < 2.8.11.5 | < 2.6.7.3
Fasterxml1 product
  • jackson-databind≥ 2.0.0, < 2.6.7.3 | ≥ 2.7.0, < 2.8.11.5 | ≥ 2.9.0, < 2.9.10.1
Fedoraproject1 product
Redhat1 product
Ubuntu1 product
  • jackson-databindAll versions (No fix recorded) | < 2.4.2-3ubuntu0.1~esm2

9 vendors · 97 products

References

46 links
Show all 46 references