Cisco Firepower Threat Defense Software Stream Reassembly Bypass Vulnerability
Published Nov 5, 2019
5.8
MEDIUMCVSS 3.1
EPSS 9.38%
Description
A vulnerability in the stream reassembly component of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to improper reassembly of traffic streams. An attacker could exploit this vulnerability by sending crafted streams through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious requests to protected systems that would otherwise be blocked.
Affected products
-
- Version unspecifiedStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | n/a |
|
- n/a
- ≥ 2.9.12 · ≤ 2.9.12.15
- ≥ 2.9.13 · ≤ 2.9.13.6
- ≥ 2.9.14.0 · ≤ 2.9.14.5
- 2.9.15
- 2.9.16
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Nov 19, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (51 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 9.38% (0.09382) | 95.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.38% (0.09382) | 94.75th | v5 (v2026.06.15) |
| Mar 4, 2026 | 40.16% (0.40159) | 97.26th | v4 (v2025.03.14) |
| Mar 1, 2026 | 33.36% (0.33355) | 96.84th | v4 (v2025.03.14) |
| Feb 4, 2026 | 40.16% (0.40159) | 97.22th | v4 (v2025.03.14) |
| Feb 1, 2026 | 33.36% (0.33355) | 96.82th | v4 (v2025.03.14) |
| Jan 4, 2026 | 40.16% (0.40159) | 97.20th | v4 (v2025.03.14) |
| Jan 1, 2026 | 33.36% (0.33355) | 96.79th | v4 (v2025.03.14) |
| Dec 4, 2025 | 40.16% (0.40159) | 97.17th | v4 (v2025.03.14) |
| Dec 1, 2025 | 33.36% (0.33355) | 96.76th | v4 (v2025.03.14) |
| Nov 21, 2025 | 40.16% (0.40159) | 97.17th | v4 (v2025.03.14) |
| Nov 18, 2025 | 11.60% (0.11600) | 92.94th | v4 (v2025.03.14) |
| Nov 4, 2025 | 40.16% (0.40159) | 97.16th | v4 (v2025.03.14) |
| Nov 1, 2025 | 33.36% (0.33355) | 96.73th | v4 (v2025.03.14) |
| Oct 5, 2025 | 40.16% (0.40159) | 97.24th | v4 (v2025.03.14) |
| Oct 4, 2025 | 23.66% (0.23660) | 95.79th | v4 (v2025.03.14) |
| Oct 1, 2025 | 18.75% (0.18751) | 95.08th | v4 (v2025.03.14) |
| Sep 6, 2025 | 23.66% (0.23660) | 95.78th | v4 (v2025.03.14) |
| Sep 1, 2025 | 18.75% (0.18751) | 95.08th | v4 (v2025.03.14) |
| Aug 4, 2025 | 23.66% (0.23660) | 95.76th | v4 (v2025.03.14) |
| Aug 1, 2025 | 18.75% (0.18751) | 95.06th | v4 (v2025.03.14) |
| Jul 4, 2025 | 23.66% (0.23660) | 95.72th | v4 (v2025.03.14) |
| Jul 1, 2025 | 18.75% (0.18751) | 95.01th | v4 (v2025.03.14) |
| Jun 4, 2025 | 23.66% (0.23660) | 95.69th | v4 (v2025.03.14) |
| Jun 1, 2025 | 18.75% (0.18751) | 94.98th | v4 (v2025.03.14) |
| May 4, 2025 | 23.66% (0.23660) | 95.64th | v4 (v2025.03.14) |
| May 1, 2025 | 18.75% (0.18751) | 94.94th | v4 (v2025.03.14) |
| Apr 19, 2025 | 23.66% (0.23660) | 95.62th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.16% (0.21158) | 95.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.13% (0.10129) | 88.42th | v4 (v2025.03.14) |
| Mar 19, 2025 | 21.16% (0.21158) | 94.95th | v4 (v2025.03.14) |
| Mar 17, 2025 | 16.94% (0.16944) | 94.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.94% (0.00938) | 83.75th | v3 (v2023.03.01) |
| Jul 7, 2024 | 0.94% (0.00938) | 83.18th | v3 (v2023.03.01) |
| Jun 5, 2024 | 0.99% (0.00988) | 83.09th | v3 (v2023.03.01) |
| Apr 12, 2024 | 0.81% (0.00808) | 81.47th | v3 (v2023.03.01) |
| Mar 31, 2024 | 0.70% (0.00701) | 79.88th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.76% (0.00760) | 80.54th | v3 (v2023.03.01) |
| Jan 15, 2024 | 0.92% (0.00919) | 81.13th | v3 (v2023.03.01) |
| Nov 12, 2023 | 0.76% (0.00764) | 79.04th | v3 (v2023.03.01) |
| Jun 19, 2023 | 0.92% (0.00919) | 80.65th | v3 (v2023.03.01) |
| Apr 27, 2023 | 0.65% (0.00649) | 76.34th | v3 (v2023.03.01) |
| Mar 25, 2023 | 0.41% (0.00415) | 70.03th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.40% (0.00401) | 69.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.38% (0.08382) | 93.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.38% (0.08382) | 93.35th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.94% (0.12940) | 90.20th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.30% (0.02304) | 53.71th | v1 |
| Jan 6, 2022 | 2.30% (0.02304) | 53.25th | v1 |
| Sep 1, 2021 | 2.30% (0.02304) | 78.15th | v1 |
| Apr 14, 2021 | 2.30% (0.02304) | 0.00th | v1 |
References (1)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.