Zammad vulnerabilities
- Zammad has 49 CVE records published between 28 Oct 2023 and 28 Oct 2026, ranking #213 of 420 vendors on this site by that count.
- Of the 49 with a CVSS score, 18 (36.7%) are rated critical or high; 0 (0% of all) have no CVSS score.
- 2 vulnerabilities attributed to Zammad are listed in CISA's Known Exploited Vulnerabilities (KEV) catalog; the most recent, CVE-2026-102489, was added on 2 Oct 2026.
- None of them is marked as known to be used in ransomware campaigns.
- For the 2 KEV entries with a published CVE record, the median time from CVE publication to KEV listing is 2 days.
Records are attributed to Zammad from the vendor named in the source records. About the data.
CVE records per year
Show data as a table
| Year | CVE records |
|---|---|
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 1 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 43 |
2026 is partial (through 28 Oct 2026), shown in a lighter bar.
| Year | Records | Critical | High | Critical or high | Not scored |
|---|---|---|---|---|---|
| 2026 | 43 | 1 | 16 | 39.5% | 0% |
| 2025 | 4 | 0 | 0 | 0% | 0% |
| 2024 | 2 | 1 | 0 | 50% | 0% |
| 2023 | 0 | 0 | 0 | — | — |
| 2022 | 0 | 0 | 0 | — | — |
| 2021 | 0 | 0 | 0 | — | — |
| 2020 | 0 | 0 | 0 | — | — |
| 2019 | 1 | 0 | 0 | — | 100% |
| 2018 | 0 | 0 | 0 | — | — |
| 2017 | 0 | 0 | 0 | — | — |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Exploited vulnerabilities in CISA's KEV catalog
| CVE | Product | Name | Added | Ransomware |
|---|---|---|---|---|
| CVE-2026-102489 | Zammad | Zammad GmbH Zammad Session Fixation Vulnerability | 2026-10-02 | Unknown |
| CVE-2026-102490 | Zammad | Zammad GmbH Zammad Improper Privilege Management Vulnerability | 2026-10-02 | Unknown |
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.
Highest exploit-prediction scores (EPSS)
EPSS estimates the probability that a vulnerability is exploited in the next 30 days. These are the 10 highest-scoring Zammad records today.
| CVE | EPSS | Percentile | Severity | In KEV |
|---|---|---|---|---|
| CVE-2026-102489 | 2% | 80.2% | High | Yes |
| CVE-2019-1010018 | 1.3% | 69.5% | Not scored | No |
| CVE-2026-102490 | 0.9% | 58.3% | High | Yes |
| CVE-2026-63006 | 0.5% | 41.3% | Medium | No |
| CVE-2024-33668 | 0.4% | 38.8% | Critical | No |
| CVE-2026-34723 | 0.4% | 38.4% | High | No |
| CVE-2026-13229 | 0.4% | 36.9% | High | No |
| CVE-2026-56735 | 0.4% | 36.3% | Medium | No |
| CVE-2026-56725 | 0.4% | 35.4% | High | No |
| CVE-2026-56734 | 0.4% | 33.8% | Medium | No |
Source: FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.