9.8

CVE-2020-9548: debian debian_linux Deserialization of Untrusted Data

Modified
AliasesUBUNTU-CVE-2020-9548DEBIAN-CVE-2020-9548CGA-2564-qwmx-q7fm
Published 02-03-2020Last modified 08-10-2026

Vulnerability summary

CVE-2020-9548 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in debian debian_linux. EPSS estimates a 18.92% chance of exploitation in the next 30 days, higher than 97.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 19% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
18.92%
0%100%
Medium · +0.58 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 14 · Related 1
DLA-2135-1MGASA-2021-0153RHBA-2020:1494RHBA-2020:3255RHSA-2020:1644RHSA-2020:2511

Timeline

  1. 02-03-2020
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

18.92%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

Increase +0.58 pp

From 18.34% 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)
Oracle22 products
Debian2 products
Com.fasterxml.jackson.core1 product
  • jackson-databind≥ 2.9.0, < 2.9.10.4 | ≥ 2.8.0, < 2.8.11.6 | ≥ 2.0.0, < 2.7.9.7
Fasterxml1 product
  • jackson-databind≥ 2.0.0, < 2.7.9.7 | ≥ 2.8.0, < 2.8.11.6 | ≥ 2.9.0, < 2.9.10.4
Netapp1 product
Ubuntu1 product
  • jackson-databindAll versions (No fix recorded) | < 2.4.2-3ubuntu0.1~esm2

7 vendors · 96 products

References

34 links
Show all 34 references